Disclaimer: I don't own harry potter nor do I own game of thrones this is just a quirky idea , enjoy
Chapter 1
A black-haired green-eyed man was meditating after receiving his latest mission from death, he was thinking that this was definitely not what he expected when he united the deathly hallows and became the master of death. His name is Harry potter. He reflected back on last several decades of his life.
Begin flashback Several years back
When he was one year old the dark lord Voldemort attacked his house in godrics hallow where he killed his father and mother and then tried to kill him because he heard a prophecy that predicted a boy born at the end of July having a power to destroy him, but when he tried to kill him the protections his mother woven around him powered by her willing sacrifice rebounded his killing curse back at him destroying his body making him live the next years as a wraith so weak that can barely possess small animals and rodents and he was moved by Hagrid on the orders of Albus Dumbledore to his muggle relatives where he was left on the doorstep with a letter explaining that his parents have died and that he is to live with them from that point onwards.
His life with his relatives was dreadful, he was forced to do all the chores and cooking since he could reach the stove, forced to wear his cousins hand me downs, and forced to eat leftovers while his relatives ate all the food that he cooked, all while being verbally abused and sometimes physically abused and constantly remined that he is a burden on his family. But he did not let any of that break his spirit he found out later for people who new his parents that he inherited his mother's intelligent and inquisitive nature and his father's stubbornness and mischievousness, and he refused to be broken by them. So he at a young age read some where the phrase "what does not kill you makes you stronger" and he took it to heart and refused to allow his relative the chance to beat him down so in order to win over them in his mind he at a young age decided that he is going to be more successful than them and have his revenge so when he went to school he did his best to achieve top marks and worked hard in sports because he heard that might get him a scholarship in the future, when he came home for the first time having scored higher then Dudley and he was accused of cheating and beaten for getting a higher score then their precious duddikins he did not let it break him and continued to work and study hard in his classes, when Dudley decided to bully him in school he attacked back no matter how many of his friends he brought with him or how many times he complained to his parents which resulted in a beating he refused to stay down which resulted in his Dudley losing interest specially after been hurt a couple of times. With Dudley backing off he was able to excel in school and super and gained popularity which made the Dursleys become nastier but by this point they couldn't be any worse and he was set to get a scholarship leave the Dursleys behind and have his revenge on them in the future. He made some friends but not any he really trusted, he started spending more and more of his time at school doing sports and studying in the local library to get away from the Dursleys. life continued that way with him becoming the best in his class at any sports because of his competitive nature he unconsciously started wishing to go faster and be stronger so his magic started circulating in his body strengthen it and making him faster and increasing his already impressive reflexes.
The slow infusion of his magic had the side benefit of improving his eyesight to the point that he did not have to wear glasses; it also made his bones stronger and increased his muscle density which resulted in him being close to the condition of professional athletes by the time he turned 8 years old. The infusion of his body constantly by magic resulting in increasing his magical core since the magic had to constantly compensate for his lack of full meals and to heal injuries which resulting in his core being constantly used and absorbing magic to refill, also having the magic constantly moving through his blood, circulation system and his brain weekend the horcrux which resulted some knowledge like occlumency and legilimency being subconsciously absorbed into his mind.
With the slow absorption of the mind arts at 8 years old he started having easier time remembering what ever he read in fact he only had to read some thing one or two times to remember it perfectly later and he kept improving, not only that but he started getting impressions of people when talking to them, small insights like feeling when a person was lying or not or getting small impression of their feelings. Having these senses allowed him to trick people easier which he become very good at like playing a prank on the bullies making them look stupid or getting them In trouble, in fact his mischievous nature developed in the art of tricking and outsmarting people and making plans and having them come as he predicted, which is why he joined the chess club and soon become one it stat players and he started learning other strategy games like Shogi and Go which he soon become one of the top at both.
By the time he was nine years old he was stronger and faster then any body in his class and he developed a bit of mistrust in adults and authority figures in general since he saw how they were treating him before and after he became a bit popular, he also started having more confidence and believe in himself which subconsciously started enhancing the magic coursing through his body. He also started to become more relaxed since the Dursleys finally figured out that anything they do will just backfire on them since he joined clubs and starts having friends and team mates in the different sports he played and those same kids went to praise him to their parents any time the Dursleys tried to badmouth him or say he is a criminal they just appeared as petty and neglecting of their nephew which had petunia kicked out of the local neighborhood gardening and book club when she tried to convince the local wives that her nephew was a criminal and disturbed child. So the Dursleys had to save face and started buying him used clothes in his size and stopped beating him in fear of the neighbors finding out now that no body believed them anymore about their nephew.
Things continued on this pace for the next three years were harry become a bit stronger than the best athletes and his body mas and height shot up now that the Dursleys were forced to feed him since he threatened to go to the police. His mind ability also increased to the point that he can sense the emotions and read the surface thoughts of people with sometimes getting strong images when he wants to know something specific. Once he started developing this ability, he thought to train it by meditating after reading in the library about the benefits of meditation. He spend the time from then learning meditation and Tai Chi on order to train both his mind and body at the same time.
When he turned eleven strange letters started arriving by the mail and the Dursleys went to great lengths to destroy them and not allowing him to read then Vernon in a fit of madness decided to move them all to an island in the middle of an ocean, where later he met a simple but well meaning man named Hagrid who explained to him about magic, and took him to diagon alley to purchase his school things then took him back to the Dursleys but now that he knew that his mind power was magical he wanted to know more about it and since Hagrid explained about accidental magic he wanted to learn what more he could do specially now that he learned about his parents murder and the dark lord who might be alive and might come after him, so he took the bus to London and went back to diagon ally where he went to get money from Gringotts the wizarding bank, when picking up his money he asked about his assets and was informed that this was his trust vault and it has also the money from both his parents vaults when they died, and they also informed him that there is the main family vault where he cant take any money but since he is the last of the potters then he can removes books or artifacts, so he asked the goblins if he can visit the family vault and was astounded by the amount of treasure, money, artifacts and most importantly books about magic, family magic from the Peverell family, as the potters are direct descendant of that family, but he found out that the Peverell was not a light family and they only cared about magic and making themselves stronger which appealed to him greatly but once he started studying the books he found them to complicated to understand so he picked a couple of books for beginners on rituals and on mind magic to study later. He spent the rest of the time studying all of the first years books and learning some occlumency and legilimency from some books and practicing legilimency on the Dursleys and some muggles until he reached Hogwarts.
His first year began on a good note where he was sorted into Gryffindor the house of the brave there he met some of his classmates and where he made friend with a cunning pair of twins who loved pranks and there they introduced him to some of their quidditch team mates Alecia, Angelina and Katie he was also introduced to their brother in his year Ronald weasly and immediately he was put off by his manners and his proclaiming himself his best friend and when he lost a chess game to him and started getting angry at him for taking the one thing he was good at from him, so from that time onward he avoided him there was also Hermione granger a book smart rule following and authority worshipping girl which immediately rubbed him the wrong way. On Halloween a troll was let into the castle and it cornered Hermione in the bathroom and he went and rescued her and from that they developed a friendship but he was much closer to the twins and the three chasers. He also became the youngest seeker in a century in his first flying lessons. In the end of the year he confronted professor Quirrell who was possessed by Voldemort were he barely survived. Afterwards he asked Dumbledore why was Voldemort after him which he got a half answer and was sent back to the Dursleys but harry was angry seeing the vast gap in power and him being saved by luck so he went back to researching his family who he found were powerful battle mages. In searching for his family he found out about Sirius black being his godfather and when he sent a letter to the goblins asking about it he was informed that Sirius is still his godfather dew to not being convicted of anything and not receiving a trial. So he sent a letter to the DMLE to investigate, Amelia bones the director of the DMLE told him that this might take sometime and she will be looking into it.
The summer of his second year he met his first house elf who made him get into trouble with his relatives and Vernon decided to lock him up in his room but he refused and ran away to diagon ally and stayed in the leaky cauldron where he kept his studies and practice into internal magic and mind magic as well as begging ritual magic, which he needed to study runes first. There he met the weaslys and the fraud gilderoy lockhart which he knew was a fraud due to his developing skills in the mind arts and was disgusted at the headmaster for hiring another useless teacher. When he tried to enter platform nine and three quarters he couldn't so he went to Hogsmeade by the night bus and walked to the castle and explained his situation to professor McGonagall. The year got worse by attacks targeting the muggle born and rumors spreading about him being the heir of Slytherin due to his Parseltongue gift being discovered for the first time but by this time he made a lot of friends from all houses and the rumors died pretty quickly. He ended up fighting the monster by the end to rescue Rons sister and was able to defeat the monster using the sword of Gryffindor. The end of the year he was able to free dobby and gained a loyal friend. At the end of second year Madam Amelia bones sent a letter informing him that his godfather has been released and recovering from his imprisonment in .
After his godfather has been released he was able to gain custody of him and they moved together in 12 grimmauld place because its one of the most heavily warded locations in Briton, there they asked dobby to clean the house and came upon the locket of Salazar Slytherin were kreacher the black family elf tried to take it and was forced by Sirius to tell his story about regulus, Sirius then looked into it and discovered the horcruxes and they together deduced the secret of Voldemorts immortality and why he did not die, he told Sirius about the diary and they figured that Voldemort might have more. After those revelations Sirius started to train harry in dueling and advanced transfiguration.
Third year passed without incident except recognizing and capturing peter Pettigrew and meeting remus lupin. Harry signed up for Runes, care of magical creature and divination because when he was young he thought that he was a sear due to his mind magic abilities and he loved magical creatures. But he was disappointed with the later two classes as Trelawney was a fraud and Hagrid while well meaning was simple and had no talent teaching children. So he quit both classes and decided to take summer tutors but found that his ancestors from the Peveril line were very good at divination since it's a form of using the body as a conduit for your magic, he also found that potion like Felix Felicis just enhance mind with a divination like ability that can sense the best outcome and direct you there kind of like direction from the force from a movie he watched when he was a kid, so he devoted his time to perfecting this ability which made him very aware of his surrounding and even able to beat siruis in a duel later in the summer because he could read all his opponents moves and he caught serius off guard. He also met some of serius's relatives andromeda her husband ted and their daughter nymphadora who is training to be an auror and they hit it off and become fast friend and his first crush for which he was endlessly teased by Sirius, the only bad point of the summer after his third year was the news that peter Pettigrew escaped due to ministry incompetence.
Sirius got them tickets for the world cup but after that a riot happened with some death eaters and some elf who apparently used Ronald Weasley's wand to create the dark mark over the camping ground. But since they went home immediately after the match they missed the excitement.
Fourth year began on a high note with the arrival of the other schools but he was selected as champion and accused of cheating by Ronald Weasley who is always jealous of him, but since had friends in all houses and he was with his friends all day before and he swore a magical vow that he did not put his name in the tournament. Things settled down and he was able to do get to know the visitors and make friends with multiple students from beauxbaton and durmstrang. The first task was dragons and harry faced the Hungarian horntail were he was able to use his enhanced body his premonition powers to get around and the dragon and steal the golden egg. Second task he ended up saving both his hostage who was his long time friend and his date the ball daphne greengrass and fleur Delacour's little sister. In the third task he reached the cup first but was kidnapped by a portkey and stunned as soon as he arrived by wormtail who proceeded to use his blood in order to bring Voldemort back from the dead and give him a body, but something wrong happened as he had been pumping magic through his body since he fond out about the Peveril magic (the Peverell used blood and soul magic to create artifacts of incredible power) and his blood was very intertwined with his magic and soul so when the dark lord created a body using his blood the blood did not integrate with the constructed body and was still connected to the soul and blood of his body so the connection between the dark lord and him was so intense that when Voldemort called his deatheaters to berate them and show his superiority his body started straining and breaking up and harry started screaming and feeling as if his scar will rip open so in a flash of magic the dark lords body was destroyed and the horcrux that has been unknowingly in his head was expelled and joined with the wraith of Voldemort, harry once coming back to his senses and feeling more powerful then ever due to his magic being free and not fighting the soul chard anymore he wasted no time in started flinging deadly spells on the stunned death eaters he was able to kill five of them before the rest regrouped and started to attack he ran to the cup and casted the fiendfyre spell at the death eaters before touching the cup. He was declared the winner and when moody come to interrogate him he was able to sense his malicious intent and attack him first which caught the death eater of guard and he was handed over to the DMLE. Most of the called death eaters died from the fire when the DMLE wen to investigate the sense and the worked to put the fire out.
Harry now knowing focusing completely on his studies and with his magic free he was able to progress leaps and bounds in his magical sensing and awareness and magical combat he also started learning how to enchant items using blood and soul magic, he also found out about the Peveril's greatest achievements the wand , the cloak and the stone, and realized that he had the cloak all along after Dumbledore was forced to give it back by the goblins in his first year. The cloak he found has the ability to completely hide the user, under the cloak no wards or magic may affect the user, in fact he could wear the cloak and rob Gringotts and no body would notice so he vowed to collect all the artifacts and unit them.
In fifth year the ministry tried interfering at Hogwarts and Dumbledore tried to interfere with harrys living arraignment since he learned from Snape that few death eaters escaped and help Voldemort get a body, but he refused and Sirius also refused to house the order in his house as he was a member before and nobody helped him when he was thrown into Azkaban, and with the disappearance of many respectable and rich purebloods minister fudge's support was waning and he could not support his toady dolorous ambridge to enforce her laws at Hogwarts, so when she tried to use a blood quill she was reported to the DMLE and was forced out of school and with the latest scandal fudge was forced out of office and replaced by madam bones. But it was not only fudge who received a backlash Dumbledore also was forced out after the Ambridge fiasco and after harry gave an interview about the every year at Hogwarts, the substandard teachers, the bullying and basically Dumbeldore treating Hogwarts as his personal kingdom. Professor McGonagall became the new headmistress, treanlway was sacked for knowing nothing about divination and not having a mastery in the subject as per the Hogwarts rules, Hagrid was demoted back to groundskeeper as he also did not have mastery nor does he have any teaching experience, snape was sacked and was taken by the DMLE for questioning for ties with the death eaters, a new history professor was hired, a team of professional curse breakers were hired to get red of the DADA curse and new teachers with masteries in all subject were hired.
One of the best things harry remembered in that year was fining the room of requirement and the room of lost and found were he came upon the diadem horcrux and handed it over to serius who at this point int time worked with a trusted task force of aurors and unspeakable that was assigned by minister bones to collect and destroy the horcruxes. The room of requirement turned out to be a great place to train in magic and in hand to hand and sword combat because he could use his full strength and speed while training and increase his endurance, magical output and experience fighting multiple opponents that the room can conjure. He also with the help of Sirius started his Animagus training which he found that his form is a black ancient dragon with bright glowing green eyes, these dragons were much larger and stronger then their current offspring. Of course he will have to practice for years in order to accomplish such a difficult transformation.
His sixth year began with the dark lord started attacking openly to install fear in the populous but with the ministry doing counter attacks under Emelia bones and having lost some of his top death eaters in the graveyard his campaign did not get off to a good start. He also started reading about crafting in the Peverell and potter books and starting working on his biggest project which to create a sword so powerful it will be able to kill anything specially horcruxes and dementors now that they have defected to the dark lord, he started learning magic crystallization where you crystalize and condense your magic then forging the sword and later doing rituals to bind the sword to ones soul and magic. Also one of the greatest achievement of the Peverell family and is achieving a state called battle awareness and precognition which made them undefeatable in battle, in fact the luck potion flix flicies was first developed to unlock the same ability with potions as quick fix instead of hard work. At the end of sixth year deatheaters were able to infiltrate Hogwarts and kill Dumbledore with the help of Draco Malfoy, harry and some of the order members were able to capture some of the deatheaters but most got a way.
With the death of Dumbledore moral was low even in harry's mind he was glad Dumbledore and his stupid not hurt any deatheater policy while they kill and rape to their hearts content, so he decided to lend his support to madam bones and with the potter, black, Longbottom, bones, abbot and greengrass and many others start pushing laws against the deatheaters. Harry also took his newts early and became an adult which allowed him to become lord potter Peveril. The first thing they did was declare wizarding Briton at war and the death eaters being enemy combatants which means that the aurors can use lethal force, enhanced interrogation methods and freez their assets as well as call on allies to help them attack the deatheaters. With the deatheaters facing real resistance for the first time in their lives they started dying and some tried defecting to the ministry for protection.
With the unspeakables being brought in on the issue of horcruxes they managed to design a ritual using one of the horcruxes that will locate them, and they embedded the ritual in the a map like the marauder map they can track voldemorts movements because of his snake. Not only that but leaving pieces of your soul unattended is a very dangerous, the unspeakable found many rituals that can weaken the dark lord using horcruxes.
Emelia bones after rounding all the horcruxes leaving only the snake with Voldemort which allowed her to bring a large task force and attack Voldemort at his base, harry accompanied them because of the prophecy and at that point he was one of the most powerful wizards in Briton. The attack was unexpected, but Voldemort put a very good fight against harry, they dueled for an hour before harry was able to get close enough and with his sword cut off Voldemort in two. Harry found an interesting wand in the hand of the bisected corpse of Voldemort and knew immediately that's the elder wand, but was confused why it did not work well for Voldemort until he figured out that with draco Malfoy being the one to disarm Dumbledore then he is the master of the wand and he planned to get rid of that pesky problem. Most of the death eaters were rounded up and voldermort died for good because he was cut with harrys soul cutter sword, the rest of the horcruxes were then destroyed. Some of the deatheater tried to plead innocent and even claim that they were being controlled and most of Dumbledore worshippers wanted to let bygones be bygones but harry and his supporters made sure that all of the death eaters and anybody associated with them got the kiss or life in Azkaban, specially the Malfoy family who tried to use their money to get away but harry made sure that they all get the kiss except for Narcissa which they couldn't prove but they were still able to levy very substantial fines that the Malfoy family is all but broke, and when snape tried to claim that he was a spy for Dumbledore harry asked him to explain how many people he saved with his alleged spying, did he warn of attacks ? did he help prisoners escape ? has he worked in any way to undermine Voldemort ?. snape was given the kiss along with the rest of the deatheaters.
From there harry worked with the ministry to round up the deatheaters and create a power block for himself in the wizarding world.
He was called to Hogwarts where headmistress McGonagall and she told him that dumbeldore left him the snitch from his first game harry was about to decline it but then he sensed the power from the snitch and he decided to take it.
He went to potter manor which he received when he became lord potter, he destroyed the snitch and got the resurrection stone, then he brought the wand, the stone and the cloak together and they merged with his body making him more powerful but nothing else.
Soon he got bored with politics and decided while he liked to win and crush his opponents in politics, he much prefer real fights. So he put andromeda as his proxy and joined the curse breakers as a freelancer for a while then when he got bored of learning about wards and traps he became a dueling champion, then a bounty hunter, then he got bored and started exploring magic and creating artifacts, but with all his knowledge he still did not understand what happened with the hallows.
Since he became the Man-Who-conquered he became very popular and he used his popularity to increase the power of the potter family and black family since he was made the heir because Sirius couldn't have any children. Now that he was free he started going around with tonks and Sirius to clubs and parties and he become worst then Sirius while perusing the ladies, he also had a casual relationship with tonks but it never went anywhere.
While he was enjoying his life he started having disturbing dreams of dead trees and dark nights and he started gaining more power whenever having one of those dreams, he started training more often to control his increasing power levels. One night he went to sleep and woke immediately in a dark looking forest.
Dream begins:
He woke and looked a round him, everything was in different shades of black but clearly distinct, he can see the trees, the ground the mist, he knew he just went to sleep and his occlumency is excellent so this must be a dream, he tried to controlled it but it did not work, next he tried to wake up but it felt like there is a disconnect between his body and soul. Suddenly someone or something was standing next to him, it was tall with a hood and a cloak like it was made of mist and the night itself he tried to sense something from the creature but could not which made him even more worried as he with a bit of concentration could sense everything with an a 50 mile radius.
"ah a peverell" the thing said or at least that's how he put it, its like hearing a voice in your head instead of listening with your ears.
"My name is harry potter, I thing your looking for someone else" harry replied.
"Do you think you can deceive me, I can see your soul and see the items of power embedded within these items will only bound with those of Peverell blood" the thing said in its otherworldly voice.
"who are you? I know this is a dream" harry replied getting irritated with all the mysterious talk.
"I am death" it said in a voice that broke no argument like it's a simple fact.
Harry just kept staring at it with mouth hanging open , and suddenly connected what the being said about the items of power and the deathly hallows that he collected.
"did you mean the deathly hallows" harry wanted to confirm
"yes" death replied
"whats that has got to do with anything, I know there made by the three Peverell brothers but that's all" harry said in an asking tone hopping that death will elaborate.
" the peverell brothers were indeed formidable but they did not fully create the items you call the deathly hallows. The shells were created by the peverell brothers but they called upon me to bless them into items of incredible power and they in return will pledge service to me" the being said in explanation, though harry got the distinct feeling that it was impatient.
"OKey, why I am here then I did not make any deal with you, and to be honest I am not sure the hallows are all that powerful" harry replied, I mean he had all the three hallows and they were not that interesting to him, in his opinion his soul slayer sword was much better.
" the bargain with the peverell brothers was who ever united the items of power they would receive incredible strength in magic, but they will be a servant to death" death said
"hey , I did not sign up to be anybody's servant" harry retorted, only his occlumency allowing him to keep his temper in check
"you are the first to unit the hallows, even the three brothers died before one of them united them, beside the bargain was struck in blood and magic there is no way out" death said calmly.
Harry began thinking if this is really death then getting angry is useless, so maybe he could negotiate and get something out of the deal, but he wanted to know more so he asked "what does being deaths servant entail?"
"you have to hunt those who pervert death and help my champions achieve victory" death said, which only confused harry, what was he talking about exactly , he started to ask but death continued his explanation " you were my champion in this universe, and if you did not defeat Voldemort he would have grown so powerful and his horcruxes would have missed with the balance of life and death specially with his plans to kill and destroy all muggles which would lead to catastrophic results for the world. And there are many worlds and dimensions where my champion will need help to complete his mission and this is where you come in"
"so the multiple dimension theory is correct ha " harry mused to himself, then asked " then you want me to go and defeat Voldemort if the me of that dimension is wimp and cant do the job" he continued a bit smugly.
" not all dimensions are the same, for example some dimensions might have magic practiced openly, some dimensions have evolved completely different from this one most of them don't even closely resemble your dimension" death explained " and you will not be responsible for defeating the evil but helping my champion succeed in his quest because they will be destined by fate to be their worlds savior so there cannot be any interference alien to the specific world"
" so how can I be transported into the world that needs help if I need only to help the champion?" harry asked
"I will be transporting you into the body of someone who can affect change and help the champion your abilities in magic will follow you but you might be entered into a body of a child or an adult and you have to live then their life until they die" death explained
"so I have to spend a whole other life and then get back here?" harry exclaimed
"yes, but once you return your emotion of that life will be gone and you will only receive the memories and knowledge which you can view in your mind, but you will be completely disconnected from them" death said " and to help you further you will have all of the memories of the one you will replace without any related emotions, another thing you need to make sure of is not show an over use of your magic, for example you can use mind magic or your sensory abilities in a world that uses different magic but you will have to learn and use their magic"
"so let me get this straight I have to get stuck in a somebodies body learn their magic and help your champion in that world defeat evil dark lords and then be stuck in that dimension until I die" harry said getting a bit upset
"yes, but once you helped my champion defeat the threat to the world you can do what ever you want with your life, you can study magic, build a school, fight in wars or become a king and once you get back here you will have experience and knowledge that you will be at your disposal" death explained
Harry thought about it he was getting bored and he would like to go to more adventures , and he still has his saving people complex, also its not like he has much of a choice here, so he said "ok I accept"
Death replied " then the bargain that's been a thousand years in the making is done, you are now the champion of death"
Dream ends
After that Harrys life become interesting, the first time death called him was to a world where people used magic but in martial arts, in this world harry was put in the body of a thief, and deaths champion in that world was a kid who was training in the martial arts magic, so harry worked until he became a crime boss in the underworld and used his position to help the kid who by that time grown up to be a good fighter to destroy the evil cult who were planning to summon demons and destroy the world. Then harry went to become the boss of the underworld in the capital city of the biggest country in the world and controlled a world spanning organization, of course it was all based on blackmailing politicians and stealing from them as harry would not condone prying on innocent people. Once he lived his life and died, he found himself back in his body with no time being gone at all. And no emotional connection to any of the friends he made in that world but with all of the knowledge of martial arts magic which helped him greatly improve his fighting technique with his sword and improve his bodies strength to great heights.
The second time harry was send to a world were magic and technology is one and harry was put in the body of a middle age cop, who is close family friend with deaths champion in that world, death told him the threat were a group of people used machines to pull the souls from people they kidnap in order to power themselves the problem is the collective souls with magic gained sentient and started work to destroy humanity, the deaths champion in that world was called jormandar, they all had weird names harry remembered, he joined the police force harry was part of and together they defeated the soul collective, in this life harry learned a lot about magical technology and he vowed that he will start one in his dimension as it will help wizards keep up with the muggles and surpass them.
End flashback
This time death had told him that he is sending him to a world of ice and fire, where there is a magical species called the children of the forest in the local language and they were fighting the humans and created a monster called a white walker with necromancy which predictably harry thought with an eye roll turned against them and started slaughtering them and they had to work with the humans to push them back to a frozen land in the north of a continent called Westeros, after pushing them back a magical hero called Brandon stark with the help of other magical species such as giants build a wall of ice that spans the continent to keep them out. But now after 8000 years the ice monsters who can raise and control the dead are back and the champion of death has a very small chance of succeeding and killing the head ice walker which should destroy the rest so he is being send to this world to help the champion of death kill the ice walker, harry shrugged how hard could it be with most of the people in that world are muggle or as death told him magical who don't know how to use magic it will be easy to get in help the champion and take a vacation or so he thought.
So he went to sleep and then opened his eyes, and he can feel he no longer in potter manor his journey in Westeros has began.