After the Battle of Hogwarts
After the death of Voldemort, the wizarding world didn't change they went back to being corrupt. Harry knew that world come after him so he went to Gringotts. At Gringotts he found that he was the Head of Potter, Black, and Peverell families. He took some money and started his traveling.
The first country he went to was America where he spent about six-month learning magic. There he met some native american and learnt the best way to become an animagus and have multiple forms unlike their Britain counterpart. His first form was a Peregrine falcon, this is his favorite form because he loves flying.
His next forms were a phoenix and a basilisk. That happened because the basilisk venom and phoenix tears coursing through his blood. The most surprising was his last form because it was a black dragon. When in his form he was gigantic and have four legs and 2 large wings with a crown and he could speak.
After He finished from America he went to china and spent two years as a monk were, he learn about internal magic, healing, elemental magic and Battle magic.
Next, he went back to Britain and went to mundane school where he got three PHD one in Mathematics, machinal engineering and literature. After 6 years of living as a mundane he went back in to the wizarding world.
Harry Potter apparated outside the Leaky Cauldron looking like he hadn't aged at all. His Hair longer and on his forehead was the fading lighting bolt scar. His face now had a beard and jaw was more define and he didn't wear any glasses. His emerald green eyes contain a golden circle.
As Harry entered the Pub, he saw the is was dimly lit and the few people inside were in the corner obviously drunk. And stood behind the bar was Tom looking a bit aged and scrubbing a glass.
"Hello Tom, Long time no see. I need a place for a few days"
Tom stop scrubbing and look into Harry eyes after he look at Harry forehead and when he saw the scar. He recognize Harry.
"Lord Potter, it be an honor to house you on your return" said Tom
"Thank You, Tom. I would like to keep my return quiet for now and please call me mister Potter"
Harry potter took the key and went upstairs. Upon entering He took some thing from his ring an put it on the ground, enlarge it. It was a suitcase, Harry bend down and press his thumbs on the lock and hiss in parseltongue
Open
There was a clicking sound and the suitcase became a bit longer and sprang open.
Harry search inside and found a large iron key and put it in his pocket and pack his suitcase.
Harry then apparated to Gringotts and went to meet one of the tellers.
"I wish to speak with my account manager. I have my key"
The goblin behind the ornamented counter was weighing glittering gems and scribbling down some notes on parchment. He did not answer nor showed he any signs to have heard the wizard at all.
Harry mentally cursed but straightened his back and repeated in iron like voice.
"I am Lord Harry Potter-Black-Peverell. And I wish to see my account manager. Now"
Harry also imbued his voice with a bit of his magic and let the abyss in his eyes shine clear.
The goblin behind the counter immediately straightened and stared captivated into Harrys eyes.
Although he was apparently a very young goblin, who must have made his way through the ranks quickly, he showed signs of recognition on his face. He must have seen his face on posters and book covers. God knows there had been an abundance of both when he had left.
Harry pulled back his magic and stopped the glowing of his eyes.
The goblin broke the stare and answered.
"Lord Potter. I will inform Griphook your account manager of your presence."
After the declaration, he made his way quickly to a small door in the back of the hall. Only a minute later he returned with an older goblin in tow.
Harry recognized Griphook from is previous trip from his vault.
Griphook came outside a small room and stood up the counter
"Welcome back to the wizarding world, Lord Potter, I will need to confirm you key and then we can talk about your account"
Harry gave Griphook the key and they started walking toward the bowel of the bank, were they saw a large door. They both enter the office. It was magnificent with a big black table in the middle. Griphook told Harry to sit down and sat on the other side.
Griphook then took a small bowl and put it on the table.
"Lord Potter, please put three drops of blood inside of the bowl" said Griphook while handing Harry the knife.
Harry took the knife and cut the tip of his finger and put the blood inside the bowl. After it was confirm that he was Harry Potter.
"Now Lord Potter-Black-Peverell, what can I do for you" said Griphook
"Call me Lord Potter. I would like to check the financial report of my asset and investment since the last time I visited"
"Of course, Lord Potter"
"I would like for you to get me a trunk with a manor inside a large library with a reserve and I would like for you to buy me a lot of potion ingredients and fill the reserve up with magical cratures" said Harry
"When do you need it?"
"In a month time."
One hour later harry potter was in the Peverell Vault when he saw the elder wand, cloak and the ring. As soon as the touch them the wand, the ring, and the cloak few into the air and start entering his body. Harry dropped unconscious.
Harry Mindscape
"Hello, Master" said the entity
"Who are you?" ask Harry
"I see you have found my three hallows or rather they found you" death continued as if Harry didn't ask him a question.
"You must Be death, I am sorry" said Harry sadly surprising the entity
"Why?" "I didn't mean to be you master"
"I know but like I said it chose you to be my master. You being my master since my the hallows has bound to you. You now have the ability to do wandless magic as easy as breathing, you can turn invisible on command, you can call any spirits and get their knowledge and you are now immortal."
"Please take it away I just want to see my family and be at peace" said Harry sadly
"I can't besides you can have another family your soul mate is waiting for you in anther realm when you are done here, I can take you there later. Now Wake UP" death said
"Thank you" said Harry