A Potter/Black Alliance

A/N: Hello all I wasn't going to upload this story until after I had finished my other Harry Potter story 'The Forgotten Hero Part II' but I got this chapter finished a few days ago and decided to upload it anyway. Enjoy.

4th July 1979

Two men were waiting outside one of the wards in St Mungo's Hospital for Magical Maladies and Injuries on a warm July night. One of the men was slowly pacing around in circles while the other was sat down on one of the wooden chairs with his head in his hands occasionally glancing at the other man.

The pacing man was around 21 years of age stood at six feet tall, he had shoulder length black hair and slight black stubble on his chin. He was dressed in a black leather with black jeans and boots.

The man who was sitting down jumped to his feet.

Like the pacing man he was around 21 years of age standing at six feet two, he had short messy brown hair and was dressed in shabby brown wizards robes.

"Sirius, stop pacing, its getting annoying" said the short haired man also known as Remus Lupin nicknamed Moony.

The long haired Sirius turned to look at him with a look of nervousness on his face.

"I can't help it Moony, I just want to know what's going on?" said the long haired Sirius Black nicknamed Padfoot.

"Well sit down then, you know they have silencing charms on the doors so we can't hear anything" said Remus.

"I know, but I need to know, its taking too long" said Sirius in exasperation.

Suddenly the doors to the ward opened getting the attention of Sirius and Remus.

A man aged around 21 years of age standing at six feet tall emerged from the doorway. He had short dark brown hair and glasses, he was dressed in light brown wizard robes.

"Prongs" said Sirius.

"Padfoot, Moony" said James Potter nicknamed Prongs walking over to each of them and giving them a hug.

"It's a..." said Remus.

"A boy, my son and heir, your godson Padfoot" said James.

Sirius and Remus both smiled.

"Come on, come and meet him" said James.

The three turned to walk through the doors into the maternity ward.

After entering through the doors they approached one of the beds at the far end of the room.

A red haired woman around 21 years of age was sitting up in the bed. She was dressed in a white hospital gown with small sky blue dots covering it. In her arms close to her chest was a newborn baby wrapped bundle of white blankets.

"Lils" said Sirius.

"Quiet Sirius he's asleep" said Lily Potter in annoyance.

James went and stood next to his wife putting his right arm around her shoulders causing Lily to lean into him.

Sirius slowly walked towards them.

"Go ahead Sirius, meet Harry James Potter" said Lily handing him her newborn son.

Sirius took him in both hands and held him close to him.

Remus walked over to Sirius.

"He has your eyes Lily" said Remus smiling.

"But James's looks" said Sirius.

"That he does, so Padfoot, what do you say, will you be his godfather?" said James.

Sirius looked at Harry once more then handed him back to Lily.

"Of course I will, its just a shame his godmother can't be here to see him" said Sirius sadly.

"Marlene will get to see him soon Sirius, she'll be back before you know it" said Remus.

Sirius nodded.

"We have a beautiful godson Marls, I hope you can meet him soon" thought Sirius.

1 month later...

Sirius apparated outside a large three story mansion in the Yorkshire countryside with a pop.

"No" shouted Sirius in anguish.

The mansion was in ruin. The front doors had been blown of their hinges. All of the windows had been shattered while parts of the wall had been blown apart.

Sirius pulled out his wand took of running into the house.

Arriving in the hallway he saw the still figure of his fiancé's father Lord Alex Mckinnon lying still on the floor with his eyes wide open and his wand at his side.

"No" said Sirius stepping over him and checking the rooms one by one.

Marlene's mother Mary Mckinnon had bled to death in the drawing room with her Grandfather Marcus Mckinnon who had a large hole in his chest from a lethal cutting curse and her younger daughter Maggie Mckinnon aged 18 who had been hit by a killing curse.

Her two younger brothers Mark aged 12 and Matthew aged 8 were lying still in their beds dressed in their pyjamas having been hit by killing curses.

"Bastards" shouted Sirius dropping to his knees.

"Marls" shouted Sirius standing up and running towards her bedroom.

He ran down the corridor to her room.

The door had been blown to the side.

Upon entering the room he stopped dead in his tracks.

Marlene Rose Mckinnon was lying on her side with several large cuts across her chest and face.

She was aged around 21 years of age with long dirty blonde hair. She was dressed in a red nightgown still clutching her wand.

"No, please don't, no don't take her from me" said Sirius in anguish.

Sirius ran over to her and dropped to his knees. He took her head in his hands and gasped.

She was breathing.

"Marls, baby can you hear me, it's Sirius" said Sirius in panic.

Marlene groaned before opening her eyes.

"Sirius" groaned Marlene.

"Its me Marls, I'm here, come on we need to get you to St Mungos" said Sirius picking her up bridal style.

"What about the others, my family?" groaned Marlene.

Sirius didn't say anything.

"No" whispered Marlene before passing out.

Sirius carried her out of the house and disapparated with a pop.

He reappeared in the waiting room at St Mungos and ran up to the welcome desk.

"Please I need help, my fiancé, she's been hit by several cutting curses, she needs help now" shouted Sirius in panic.

Several Healers made their way over to him and conjured a stretcher for her.

The stretcher floated to the spell damage ward with the Healers and Sirius following in hot pursuit.

Once he reached the doors the Healers stopped him and told him he couldn't come in.

Sirius just nodded and made his way over to the wooden seats outside the door and collapsed onto one of them.

Sirius did not know how much time had passed when James, Lily and Remus ran up to him.

"Padfoot, we came as soon as we heard, is it true, are they all..." said Remus.

Sirius just nodded solemnly.

"No" said James.

"Hows Marlene?" said Lliy in shock.

"I don't know, they haven't come back out yet" said Sirius.

"She'll be okay Padfoot, she's a fighter" said James.

"I hope so, I don't know what I'd do if I lost her" said Sirius.

"Don't think like that Padfoot, just focus, she'll pull through this" said Remus sadly.

Sirius looked at his close friend realising the weight of his words. Remus was still grieving for his girlfriend Dorcas Meadowes who had been killed personally by Voldemort three months prior.

Looking round Sirius realised who was missing.

"Where's Wormtail?" said Sirius.

"Mission for the order, we'll let him know when he returns" said Lily.

Sirius nodded.

The door opened revealing a male Healer aged around 40 years of age with short black hair dressed in white healer robes.

Sirius and Lily strode over to him.

"How is she?" said Lily.

The Healer managed a weak smile.

"She's alive" said the Healer.

They all breathed a sigh of relief.

"Can we see her?" said Remus.

"Yeah, but there might be a bit of a shock" said the Healer.

"What do you mean, a bit of shock?" said Sirius in shock.

The Healer frowned.

"I think you better come and see for yourself" said the Healer turning around towards the doors.

The group followed him with Sirius leading. They followed the Healer to a bed surrounded by curtains in the corner of the room.

The Healer slowly peeled back the curtains before walking over to the other patients.

The group looked on shocked.

Marlene's face and arms were covered in scars from the effects of the cutting spells she had received from the Death Eater attack.

Lily dropped to Marlene's side and grabbed her hand.

"I'll get the bastards who did this" said James.

"Not if I get them first" said Remus.

Sirius walked over and brushed some of the hair out Marlene's face causing her to stir.

"Marlene" said Lily.

"Marls" said Sirius with relief.

Marlene slowly opened her eyes looking directly at Sirius with a half relieved half sad look on her face.

"Sirius" said Marlene sadly.

"I'm here Marls, we're all here" said Sirius.

Marlene looked around the room noticing James and Remus giving them a sad smile which quickly turned into a frown upon noticing that they were the only ones in the room.

"Where's my family?" said Marlene.

Sirius just shook his head, Lily squeezed her hand, James turned away from her, while Remus put his head in his hands.

This caused Marlene to cry.

Sirius dropped next to her and pulled her into him.

"I'm sorry Marls, when I got there" said Sirius sadly.

Marlene just sobbed even more.

"My family, my parents, my grandfather, my sister, my baby brothers, all..." said Marlene.

"We'll get them Marlene, they'll pay for what they did" said James.

"James" hissed Lily.

"That's not what she needs to hear right now James" said Remus sternly.

"My families gone, and I'm scarred for life, look at me now, I'm hideous" said Marlene laughing harshly.

"Your not hideous baby" said Sirius.

"Your a terrible liar Sirius" said Marlene.

"We'll give you guys a moment alone" said Lily standing up.

"You don't have to" said Marlene.

"Its okay, you guys need a moment alone, we'll wait outside" said James.

The three walked out of the ward leaving Sirius and Marlene on their own.

Sirius squeezed her.

"I thought I'd lost you, I thought I'd got there too late" said Sirius.

"I thought I was going to die, just like the others" said Marlene.

"I'm sorry Marls, I couldn't save them" said Sirius sorrowfully.

"Don't, just don't, its not your fault" said Marlene.

"When I'd found you I'd thought you were dead, that I'd lost the person I loved most in the whole world, I don't know what I would've done if you..." said Sirius.

"Sirius, don't talk like that, I'm still here, don't think about it, just hold me" said Marlene sadly.

The two sat together in each others arms for about half an hour until the others came back into the ward with a rather dishevelled and nervous looking Peter Pettigrew in tow.

They stayed for a good hour before visiting hours ended, Sirius slept in a cot next to the bed for the night while the others returned home.

Marlene was discharged the next day and went to stay with Sirius at Black Cottage in Portsmouth.

The funerals were held the next week in the graveyard at the end of the Mckinnon estate. Sirius stayed by her side as she sobbed her heart out during the entire service crying the hardest when her brothers were buried.

1 month later...

"Do you Sirius Orion Black, take this woman Marlene Rose Mckinnon to be your lady wife, for richer or poorer, in sickness and in health, until death do you part?" said the Wizerd Pastor dressed in black wizard robes.

"I do" said Sirius dressed in his Black family robes with his long hair slicked back behind his ears.

The pastor turned to Marlene who still had the faint white scars on her body from the Daeth Eater attack. She was dressed in a creamy white strapless dress embroidered with various jewels. She had her hair tied back into an elegant knot.

"And do you Marlene Rose Mckinnon take this man Sirius Orion Black to be your lord husband, for richer or poorer, is sickness and in health, until death do you part?" said the Pastor.

"I do" said Marlene.

The pastor smiled at the two.

"Well by the power vested in me by magic herself, I now pronounce you man and wife, you may kiss your bride" said the Pastor.

Sirius and Marlene embraced each other kissing furiously to the jeers and tears of James, Remus, Lily, Peter, Andromeda, Ted, their 6 year old daughter Nymphadora and Mary Mcdonald who was holding Harry Potter as well as other members of the Order Of The Phoenix.

The two had decided to rush forward their wedding a few days after the funeral. They had been engaged for just under a year and had no desire to wait any longer for their wedding.

It also provided a healthy distraction from the true horrors of the war which seemed to be popping up more and more frequently. Only two weeks ago the Prewitt twins Gideon and Fabian had been killed by a group of five death eaters including one of Voldemort's most powerful followers Antonin Dolohov.

The two decided to spend their week long honeymoon in solitude at their cottage in Portsmouth having no desire to travel while the wizarding world was at war.

2 months later...

Marlene gasped with joy at the blue colour of the potion vial in her right hand.

She was sat at the table in their kitchen.

"Sirius, come here, quickly" shouted Marlene.

Sirius came running into the room.

"What is it Marls?" said Sirius rapidly.

Marlene placed the vial on the table.

Sirius looked at it and slowly started to smile.

"Your..." said Sirius.

"Yes, I'm pregnant you old dog, we're going to have a baby" said Marlene with slight tears forming in her eyes.

Sirius strode over to her and pulled her to her feet wrapping her in a hug and kissing her which she returned.

31st July 1980

"Come on Mrs Black keep pushing, your nearly there" said the female Healer.

Marlene was lying on her back in the hospital bed screaming in pain while Sirius was stood next to her clasping her hand.

She screwed up her face in pain and concentration and pushed once more squeezing Sirius's hand hard causing him to wince.

The soft cries of a baby broke caused everything to fall silent.

The healer pulled a small baby boy from between her legs and used her wand to sever the umbilical cord.

"Congratulations, a healthy baby boy" said the Healer holding him out towards Marlene.

"You did it, our son is here Marls" said Sirius happily.

Marlene slowly took her son from the healer.

"Alexander, Alexander Marcus Black" said Marlene softly.

"Alexander" said Sirius holding his arms towards Marlene.

She handed Alexander to him.

A few moments later James, Lily who was holding Harry, Remus, Peter and Mary entered the room and made their way over to them.

"Congratulations" said Remus.

"Another little marauder, well done Padfoot" said James.

"Thanks Prongs, by the way we've both agreed on this, but will you and Lily be Alexander's godparents?" said Sirius.

"Like you have to ask, of course we will" said Lily.

"Alexander Marcus Black, my son and heir" said Sirius.

The group stayed and chatted for hours while various members left one by one until only Sirius and Marlene were left with their son.

However certain events we're planning to test their happiness. Events in the shape of Albus Dumbledore.

He had shown up unexpectedly four months after Alex was born. He was an old wizard with long white hair and a long white beard. He was wearing spectacles on his crooked nose dressed in sky blue wizard robes.

Dumbledore sat down on one of the white leather chairs in their sitting room.

Sirius and Marlene were sat on the leather settee opposite him. This situation was leaving Sirius slightly uncomfortable which he did not like one bit. Alexander was asleep in his crib upstairs.

"Ah Sirius, Marlene, how are you both?" said Dumbldore in his usual grandfather like voice.

Sirius and Marlene crossed eyes with each other suspiciously.

"We're fine Professor" said Marlene.

"Please call me Albus, I am not your headmaster any more" said Dumbledore.

"What do you want Albus?" said Sirius curtly. He had never really been able to trust the old headmaster. Too much power for one man who was starting to go slightly mad.

"I suppose we better get straight to the point, our business concerns Alexander and the Longbottom heir Neville" said Dumbledore.

Marlene stared intently at Dumbledore. Frank and Alice Longbottom's son Neville had been born only an hour after Alexander.

"What does our son have to do with whatever it is you're talking about Albus?" said Sirius sharply.

"Sirius my boy, 2 months ago I interviewed an applicant for the vacant Divination post at Hogwarts, a descendent of the famous seer Cassandra Trelawney actually" said Dumbldore.

"So" said Marlene.

"I was about to turn her down, given that she didn't have an ounce of the ability in her body, but then something remarkable happened" said Dumbledore.

"Go on" said Sirius curtly.

"She made a real prophecy, one predicting the downfall of Voldemort, saying that he would meet his end by the hands of someone born as the 7th month dies, as in the end of last July" said Dumbledore.

Marlene gasped.

"You see where I am going with this, the prophecy refers to either Alexander or Neville, they are the children destined to defeat Voldemort" said Dumbledore.

"You off your rocker Dumbledore, how can two babies defeat You-Know-Who?" said Marlene.

"I don't know, but my spy within the Death Eaters informs me that Voldemort is now hunting you and the Longbottom's, he intends to hunt you down and kill Alexander along with the Longbottom's, you need to go into hiding to keep him safe" said Dumbledore.

"So he actually believes this prophecy then, he wants to kill our son" said Sirius.

"Yes, you have to go into hiding, the Longbottom's have already agreed to go under the Fidelius charm, I put them under the charm 2 days ago, I can come back tomorrow and put you under the charm, you'll have to choose someone to be your secret keeper, I'd be more than willing to be your secret keeper" said Dumbledore twiddling his thumbs.

Sirius and Marlene looked at each other for a moment before nodding.

"All right, come back in the morning, but we'll choose our own secret keeper" said Marlene.

Dumbledore frowned for a few seconds before nodding.

"Very well then, I'll be back in the morning, I'll see myself out" said Dumbledore rising from his chair and heading to the door.

Once he had left Marlene turned to Sirius.

"When did it all get so bad, so many people dead, Dorcas, Benjy, Gid, Fab, the Bones, Carodoc, James parents, my family, how many more will we lose before this is over" said Marlene.

"I don't know" said Sirius sadly.

"And now our 4 month old son is now being hunted by a psychotic madman" said Marlene sounding scared.

"We'll protect him Marls, You-Know-Who won't get near him" said Sirius.

"Sirius" said Marlene.

"I'm serious Marls, I won't let him hurt our son, or you, I promise" said Sirius.

"I know, but we can't lose him, I wouldn't be able to go on if we lost him" said Marlene.

"Don't say that Marls, don't think like that" said Sirius.

Marlene looked down.

"Marls look at me" said Sirius grabbing her face in his hands.

Marlene looked up at him with slight tears in her eyes.

"We won't lose him, we'll get through this, I'll get James to be secret keeper, I trust him more than Dumbledore" said Sirius.

Marlene nodded.

"Come on lets go and get our son" said Marlene.

31st October 1981

It had happened. What they had hoped would happen for years had finally happened. Voldemort had been defeated. Seemingly by a one year old Neville Longbottom. However this had come at a cost.

The Longbottom's had been sold out to Voldemort by their secret keeper Peter Pettigrew who had revealed that they were hiding in a small cottage in Bristol. Frank and Alice Longbottom had been attending an order meeting leaving Augusta Longbottom at home with Neville.

After bursting into the cottage Voldemort had duelled Augusta before killing her when she refused to step aside and allow him to kill Neville. After killing her Voldemort turned his wand on Neville but had been defeated somehow when his killing curse rebounded off of Neville and hit him causing his body to vanish leaving only his robes and wand.

The wizarding world had pronounced Neville as the Boy Who Lived claiming he had untold special powers which allowed him to beat Voldemort but didn't mention Augusta's sacrifice which protected Neville.

Remus had vanished from the wizarding world all together and had cut off any contact with Sirius or any of the others. Sirius suspected he might have headed into the muggle world and left all the chaos and death behind.

However more bad news was just around the corner.

James, Lily and Harry had been living at Potter Cottage in Godrics Hollow ever since Potter Manor was destroyed in the Death Eater attack which killed James parents Charlus and Dorea Potter as well as his uncle Fleamont Potter in June 1980.

James and Lily had chosen not to go under the Fidelius given that no one bar a few people knew about their cottage in Godrics Hollow. This proved to be a mistake.

Four days after Voldemorts defeat a group of rogue death eaters had managed to locate the Potters and attacked them in Godrics Hollow.

Sirius had apparated to the cottage where he was joined by Alastor 'Mad Eye' Moody and a team of aurors.

They rushed into the house where Moody and the aurors managed to stun and capture three masked death eaters standing over the lifeless body of James Potter. In a panic Sirius rushed off upstairs to find Lily.

"Avada Kedavra" screamed a high pitched female voice that made Sirius's blood run cold.

"Bella" thought Sirius in panic and anger.

Sirius sped up towards Harry's bedroom where the voice had come from hearing her trademark scream/laugh.

Bursting into the doorway he saw the pale skinned Bellatrix Lestrange with her trademark curly black hair down to her back dressed in her black Death Eater dress.

Lily was lying dead on the floor at her feet while a crying Harry was looking at Bellatrix from his crib. Bellatrix still had her back to him and was raising her wand towards Harry.

In a rage Sirius sent a powerful silent stunner at Bellatrix. She turned around but was unable to block it in time resulting in the stunner slamming into her chest sending her flying into the wall knocking her out cold.

"Incarcerous" said Sirius pointing his wand at Bellatrix conjuring ropes to bind her to the floor.

Sirius looked at her with anger wishing he had killed her instead.

"Harry" said Sirius turning towards his crib.

Sirius strode over and picked Harry up out of the crib and held him close to his chest.

"Its all right Harry, you're safe now, its okay" said Sirius quietly.

He took one last look at Lily before walking out of the room carrying Harry. As he turned down the hallway auror's Stamford Savage and Rufus Scrimgeour reached the top of the stairs.

"Sirius" said Savage.

"Bella's in there" said Sirius nodding his head in the direction of Harry's bedroom.

"Lestrange" said Scrimgeour in shock.

Sirius nodded and headed downstairs where he saw the three unmasked Death Eaters.

The long black haired hard faced 29 year old Rodolphus Lestange. The short black haired thinner faced 27 year old Rabastan Lestrange and to his surprise the short blonde haired 19 year old Barty Crouch Jr, they were all on their knees and bound.

Sirius glared at them before heading to the door where Rodolphus called out to him.

"The Dark Lord will return one day Black, and when he does he'll reward us for our devotion and service" shouted Rodolphus in his brutish voice.

Sirius paused and snarled before leaving the house. He walked to the end of the footpath before apparating back to Black Cottage.

Bellatrix, Rodolphus, Rabastan and Crouch Jr were sentenced to life in Azkaban a week later by Barty Crouch Sr.

Frank and Alice Longbottom had taken their son's new status to the extreme aided by Dumbledore and the Light faction. They had all become absorbed in the publicity and become vain and arrogant as being parents of a hero.

This caused Sirius to re-evaluate his supposed friendship with Dumbledore and the Longbottom's. He wasn't the only one as Amelia Bones who had lost nearly all of her family save her year old niece to the war who like Sirius had become disgusted with the Longbottom's and Dumbledore's actions.

The Bones had always been a neutral family along with the Greengrass, Davis and Mckinnon families. The Potters had originally been a neutral family but James had switched to the Light faction after taking up his Lordship over a year ago.

As such Sirius with his recently inherited Black lordship changed allegiance to the neutral faction further distancing himself from the light faction. This did not sit too well with Dumbledore and Frank Longbottom who didn't take his switch very well, Dumbledore especially as he had lost the influence of two important ploitical families.

The Back family moved into the ancestral Black house 12 Grimmauld Place shortly after Sirius took up his lordship after a month of cleaning the whole house out top to bottom.

Harry and Alex grew up as close as brothers, closer than Sirius was with his younger brother Regulus. When Harry and Alex were 3 and 2 years old respectively Marlene gave birth to a daughter Dorcas Lillian Black named in memory of her two best friends.

The Black children spent a lot of time with the Greengrass, Davis and Bones children over the years since the families were allies. After noticing how close Alex and Susan Bones hhad become Sirius and Amelia Bones signed an official betrothal agreement for the two of them when they were 8 years old. Sirius did not sign any betrothal agreement for his godson as he could not legally do it as he was not head of house Potter, also he did not want to take his godsons right to a choice from him.