Disclaimer: - I don't own any character in this story, everything belongs to JK Rowling (Harry Potter) and Marvel.

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Chapter 1

Homecoming

Harry Potter POV

The place was same as always, the evening sky, the long silence, the still water in the black lake, it was a like a live painting that showed the beautiful view in the bank of the Black Lake of Hogwarts. I found myself in that place again and even after coming to this place so many times I was still attached to it, I stared at the still horizon for a long time joining the silence. I mulled over my past life or lives and looking at it now it was much different than what I expected when I dreamt while sleeping in the cupboards under the stairs, that was a long time ago it was a time when I was a naive boy thinking about how to run away from my relatives and live happily.

Then came the letter which opened up a whole new world for me telling me that I was a wizard, I still remember the day when Hagrid knocked out the door on my 11th birthday and introduced me to the wizarding world. Life was never easy for me but I prevailed and be the best I can be because I am Hadrian James Potter, I had been given or held many titles in my many lives but the one that prevailed over everything was the one of Master Of Death. Suddenly the loneliness of the place lessened as a hand with a very pale white skin rested on my shoulders, I turned around and found a very pale but beautiful woman in fully black dress and black lips in front of me.

I smiled and greeted at her, "Hello Death."

Death smiled, "Hello master, welcome back."

I smiled and sat down near the lake, "I have been in this place so many times and we have done many things here but I never asked about it, where is this place?"

Death sat down beside me, "It is my domain and I will it to take this shape whenever you come here after all it is one of your favourite places. So, did you enjoy your recent next great adventure."

I laughed, "Yes, playing games with angels, fallen angels and devils while being in a high school was quite fun."

Death looked at me strangely, "As I said to you earlier that was one of the typical dimension where all the higher beings are females and they always love to stay in high school in the form of beautiful girls."

I grinned, "Very true, they were really good looking."

Death smiled and nodded, "What now master? Will you be going to another dimension or visit a previous one?" Death asked.

I thought about it for a long time and then finally answered, "I think it's time I go back home."

Death stared at me then asked, "So, you want to return to your birth dimension." I nodded in reply so Death continued, "I told you once before master, it has changed drastically. There is only Potter left in that world and she never uses her real name, there are no wizard like there were in your time."

I nodded, "Home is home death and I think it's time I visit my home again, I always wizards to go extinct in the long run due to their short sightedness and arrogance so it's not much shocking to me."

Death smiled, "You will be very surprised master, I can assure you that."

I nodded and asked, "Tell me one thing Death, how will you describe my last descendant?"

Death smiled, "Her childhood was very hard, harder than yours but she got the potter family trait in her. She did everything needed to survive in the world and now she is one of the most dangerous human being in the whole planet."

"I would love to meet her, anything else you think need my attention." I asked.

Death nodded, "Yes, there is a being in your home universe and he is from another planet. He wants to have Death as his lover and that's why he is destroying lives in many planets."

I looked at her strangely, "I am very confused right now. Death has no gender as you take form as you please, so how does this being plan to make you his lover? And why would he think that killing beings will bring you closer to him?"

Death laughed, "He thinks of me as a female and is quite obsessed with me, he destroys lives in the hope that I'll be pleased by the soul of the dead."

I couldn't help myself as I laughed very hard, "For real, I think your servant in that universe must be very unhappy by the paperwork from that many deaths."

Death smiled and nodded, "Yes, my servants want him gone but they are not strong enough to end him. His next target is your planet as he wants to erase the existence of human beings from earth, Fate had a plan to take care of him and prevent the destruction of your home planet but I think with you it can be done without much loss."

I shrugged, "Sure, what's his name by the way?"

Death replied, "Thanos." I nodded as Death continued, "I'll see you later master." With that I felt the familiar feeling of squeezing through the void as death transported me back to my world after a long time.

XXXXXX

When I opened my eyes, I found myself in front of the Black Lake the real one, I looked around and found that it was fully abandoned and there was nothing similar to Hogwarts as the whole area was covered which big trees. I extended my magical sense and found nothing magical anything nearby, I ran toward the place which was occupied by the Hogwarts castle and found that there was no sign of Hogwarts ever being there. I found a small clearing and sat down to focus on the surrounding, once I closed my eyes I used my full power and focus and connected to the earth and the wild magic in the air. I found that the lay lines beneath Hogwarts was still there but it was vey weak and the wild magic in the air seems very chaotic, I broadened my horizon in search for anything magical.

Thankfully there were magical beings still alive but I sensed that they were hidden with a kind of shield that I have never seen before, all the magical creatures and plants were still present. There was no fully magical being present in the universe like Veela, Werewolf, Elves or Goblins but I felt many human beings on which wild magic has latched upon, they were not fully magical being but they had a type of connection to the natural magic. I could also sense a few magical objects all around the world but one of them gave a sense of familiarity to me, it was kept somewhere in North America and I felt a deep urge to investigate it. I reeled back my magical sense and opened my eyes. "Looks like I'll be going to North America."

I made myself invisible with my Invisibility Cloak which was a part of me like the other two Hallows and then I apparated to what used to be the middle of London, thankfully this place was still there and the place was as busy as I remembered. I walked near to a stand selling newspaper to check the date and what I found shocked me, it was 19th July 2007. I muttered to myself, "What the hell, when I left it was nearly 2300 then how come I am back in 2007. This doesn't make any sense, I am pretty sure Hogwarts was still there in 2007." London was just like it was as I remembered except there was no Diagon Alley or the platform 9 ¾ in the Charing Cross station.

I stayed invisible and reached London airport and boarded a flight to North America, specifically San Francisco. It was a 11 hour long flight and after reaching San Francisco it was night time and I was feeling quite hungry, I went to a nearby burger joint to get a couple of Hamburger. I didn't have any money so I confounded the owner into believing that I already payed him, once I was fully fed I booked a room in a nearby hotel after confounding the hotel owner.

The next day I concentrated on my senses and I found the familiar object which seem to be calling me, it was on a small faraway island and I used my Phoenix Animagus form to flash teleport there. When I reached there I found a lone and very tall building which had no gates on the ground level, I flew up to the top of the building while still staying invisible. There were four guards on the top guarding a single door, I quickly manifested the Elder Wand to cast a Sistite Tempus charm that I personally created. The charm stopped time for a very small time in the surrounding but it takes a lot of power to do so, once the time halted I quickly used passkey from a guard to open up the door. I quickly put the passkey back where in the guard pocket and entered inside while ending the charm.

Once inside I could feel the call of the object much stronger than it was previously, there were few guards roaming inside the building but I stayed invisible and headed to the lowest floor where the object was kept. Once I was there I made sure that I was alone here in this floor, once confirmed I became visible again. The object calling to me was a necklace but the interesting thing was it was actually a miniature Trunk that I personally created and gave it to my children's and this one belonged to my daughter Lily, I quickly opened the glass case and picked out the necklace and put it around my neck. Just then a group of guards came in and surrounded me, I could have apparated away but I decided to find out who owns this place.

Unfortunately, before I could say anything one of the guards shot me with a tranquilizer and I fell down unconscious. I am immune to all poisons but unfortunately chemicals and potions still affect me to some extent, the next time I opened my eyes I found myself sitting on a chair, the room was completely white with two more chairs and a table which meant that it was an interrogation room. My hands were tied in Handcuffs and there was a single camera in one corner of the room, I could have easily opened the handcuffs and escaped but I decided to let it continue since I already had the necklace and no one can take it out without my permission. I looked toward the camera and said out loud, "Hello there, I am thirsty and hungry as well. Would anyone give me something to eat and drink please."

XXXXXX

Third Person POV

Nick Fury director of S.H.I.E.L.D was very good at his job, he loved to work from the background and maintain peace in the world. There were many powerful and dangerous people in the world with amazing power and abilities but S.H.I.E.L.D has the counter each one of them when necessary. S.H.I.E.L.D was a very secretive organization about which only the upper tier of government knew about and Nick Fury liked it that way, he was spy and he loves working in the shadows. So, it was really shocking for him when his assistant Maria Hill entered his office to inform him about Harry.

"Agent Hill, what's the matter?" Nick Fury asked as Maria Hill entered his office.

"Sir, there's a breach in FRIDGE." She answered.

Nick looked at her in shock, "What? Are you sure Agent Hill?"

Maria nodded, "Yes sir, a man somehow entered the Fridge while remaining unnoticed by the guards. The breach was detected because somehow the passkey of one guard was used to open the door and no one was seen entering and all this happened while no guard saw anything."

Fury composed himself as he stood up, "Did they caught anyone?"

Maria Hill nodded, "Yes sir, according to the camera a man suddenly appeared in the ground floor and went for the oldest 0-8-4 kept in the fridge. The 0-8-4 was a necklace and the man put it around his neck, he was then surrounded by the security and shot with a Tranquilizer. They tried to take out the necklace from the man's neck but they were not successful, what should we do now sir?"

Nick Fury mulled over it then replied, "Bring him here to our New York Base, call Agent Coulson and Agent Romanoff to be ready to interrogate the man."

Maria nodded and left his office, Nick frowned and said to himself. "A man who can stay invisible, maybe it's another mutant but how did he get the location of FRIDGE?"

The man was finally brought in and put in the White Room, Nick Fury, Phil Coulson, Maria Hill and Natasha Romanoff widely known as the Black Widow looked as the man wake up and looked around and then demanded for something to eat and drink.

Nick said, "We ran this man ace in all of the database we have and there wasn't a single match."

"What do you think Agent Coulson?" Maria Hill asked and Fury too seemed interested in hearing Coulson's assessment.

"Frankly speaking sir, I am confused. This man whoever he is doesn't look even a bit worried, it seems like he knows that he can easily get out of here without any problem. Is he a mutant?" Coulson asked.

Maria answered, "We tried testing his blood but it's like his blood is sentient and doesn't give any information on him."

Fury said, "Agent Coulson, Romanoff why don't you two go in and get to know him."

Natasha looked at Fury and asked, "Together?"

Fury nodded, "Yes, let's see what he says for himself."

"Give him your Donuts." Maria suggested

Phil grumbled and replied, "I bought some Donuts for myself, I am not sharing it with anyone." With that he entered the White Room while Natasha followed him.

Harry watched as a middle aged man entered through the door followed closely a beautiful red haired girl with green eyes very similar to that of Harry, Harry stared at Natasha for a long time as the two entered the room and sat down in front of Harry. Harry finally took his eyes of Natasha and greeted the two, "Hello Gentlemen, dear lady, I am Hadrian James Potter. You may call me Harry; would you mind to share your names please?"

Natasha was shocked but she quickly composed herself and then eyed Harry but it was Coulson who answered, "Hello Harry, I am Agent Coulson and this is my colleague agent Romanoff, we are from S.H.I.E.L.D."

Harry smiled and said, "S.H.I.E.L.D, it must be some secret government organization." He then looked at Natasha, "Romanoff huh, I have a feeling that it isn't your real name, still what can I do for you?"

"S.H.I.E.L.D stands for Strategic Homeland Intervention, Enforcement and Logistics Division." Coulson replied then he asked, "Your accent seems British, are you from England?"

Harry nodded, "Yes, I was born in England."

Natasha asked the next question, "Are you a mutant?"

Harry looked at her strangely, "Mutant, I am not familiar with that term."

Coulson nodded and replied, "Mutants are people like you who have special abilities due to a certain extra mutant gene in a human being DNA, we tried to test your blood but it gave us no result."

Harry nodded and replied, "Interesting, I don't think I am a mutant since I don't have any extra gene in my DNA. You can't test my blood without my permission, that's why you can't test my blood."

Natasha frowned and asked, "Care to elaborate."

Harry shrugged and replied, "A bad man once used my blood for a bad thing, that's why I did something that made it impossible for anyone to use my blood for anything without my permission."

Natasha and Coulson looked at each other knowing fully that Harry was intentionally hiding information, "Can you tell us how you got inside FRIDGE?"

Harry asked confusedly, "Fridge? The last time I accessed a fridge was to get a cold drink."

Natasha scowled, "We are talking about the building you breached, it was a secret facility called FRIDGE."

At that Harry laughed, "Seriously, I have to give it to the guys who give names around here. But to answer your question, I was there for this necklace as it belongs to me?"

Coulson eyed Harry, "I don't think so, this necklace was found in Scotland."

But this time Harry interrupted him, "Scotland you say, was it near a big lake called the Black Lake?" Coulson nodded as Harry continued, "I made two more necklace like this for my three children, the one I currently have belonged to my daughter Rose and then she passed it on to her son."

Natasha snorted, "You look like a 20 year old and you think we will believe your story."

Harry laughed, "I am much older than you think agent Romanoff."

Coulson intervened, "Even if we believe your story this necklace was found to be more than 2000 years old."

Harry stared at Coulson in shock and muttered to himself, "2000 years how is that possible, this is truly a mystery." Harry looked at Coulson and Natasha and then silently used Alohomora to open the handcuffs and stood up. Natasha and Phil quickly pulled out their guns but Harry quickly disarmed them, the two looked at Harry in shock.

Outside the room Fury and Hill tried to enter the room but found it locked from the inside, Harry grinned and said, "Well it was nice meeting you Phil Coulson and agent Romanoff, I need to investigate something and please don't try to catch me again. I am not a criminal who is needed to be apprehended and you can't catch me, tell you dear one eyed boss Nick Fury that I am not a threat. Toddles." With that he vanished.

The door unlocked as Fury and Hill barged in, "He played us." Natasha said while picking up her pistol.

Coulson nodded, "Yes, but the thing is I felt that everything he said was the truth."

Fury frowned, "He can be invisible, effect his blood in some way and even teleport. I want him found no matter what, I don't care if he was telling the truth or not he was able to breach FRIDGE which location is known only to a very few and he knew about me that is not good."

XXXXXX

Harry Potter POV

I teleported directly back to my hotel room in San Francisco and ordered food through room service, once my stomach was full I took out the necklace and put my finger on the miniature trunk. There was a prick as the blood wards matched my blood and the trunk expanded to its original size, the trunk was looking very worn out and old but it was still working exceptionally. I gave the parseltounge password to open the trunk, $ Open $ as simple as that. The trunk opened up and it was completely empty except one thing, 'The Peverell Grimoire'.

I quickly took out the Grimoire which scanned my magical signature and opened for me, it was just as I remembered filled with the invention and history of the Peverell lords which later became the Potter lords. I found my own entries in the grimoire and also the entries of my children and grandchildren's, it was the last entry that explained everything to me.

Lord Harold Potter

31 July, 3007

We finally did it, after 7 long years of research we finally found a way to protect the existence of magic and the survival of our children. I with my wife, my sister and my two cousins were able to create a Fidelus charm that will make shroud all magical beings and the past 1500 years with our family being the only secret keeper.

The war between magical and normal people has escalated to new heights, witch and wizards are nearly extinct and the reason behind it was our short sightedness and arrogance. Both sided tried to prove that they are superior and the world is now nearly barren of magical human beings, we were on the winning side of the war until all the squibs who had a grudge against us came to play. They were able to see through our magical shields and the nuclear bombs of muggles are destroying the magical population, now there aren't many magical children taking birth and our three children are most probably the only magical children in the whole world.

Magic is now showing itself randomly in children and people who get some amazing abilities, they are called mutants by the muggles and they are also being hunted down like us. Potters were known to be one of the most powerful witches and wizards and muggles are now searching for us, I am not sure that our wards will hold any longer and if they find us we are done for. Veelas, Werewolf, Goblins and elves had already been made extinct, I fear for the future of our children.

We finally created a ritual that will invoke Mother Magic and with her help we are going to put all magical beings under a Fidelus with the Potter family members as the secret keeper, the ritual will hide all magical beings from the world and then remove any trace of magic from the past 1500 years. No muggle or any technological devices will remember the war and everything will go on as if there were never any magical being present in this planet, this is our last hope and also the only way to secure the future of our children's.

But it comes at a cost, as the ritual will take away my life, life of my wife, my sister and my two cousins. Our children will grow up without their parents but alas they will survive after all we are Potter and we will survive at any cost, I have prepared my daughter Rose to take care of her brother and her cousin. I wish that I could watch them grow, teach them to do magic, do pranks but it looks like my destiny doesn't agree with my wishes.

I hope our family grow and survive this harsh time, learn from past mistakes and be strong for the future.

I stared at the last entry for a long time, "So that's why it is 2007 now, Mutants are next generation of magical population and my family has dwindled down to me and my many time great granddaughter. Miss Romanoff what happened to you? What is your real name? How come you are the last potter beside me?"

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AN: - This story is a part of my 'The next Great Adventure' series, it has been on my mind for a long time and now I have finally penned it down. Comments and reviews are welcomed, if there are some grammatical mistakes please ignore them until they are not too big.

If you want to criticize the story its ok but don't give negative comments, if you don't like it don't read it.