Name: Raised in Rapture

Pairing/characters: Harry Potter/ (Oc) Diana Olivegreen/ (Oc) Sofia Rapple/ (Oc) Red Scarberry/ Hermione Granger

Summary: Harry is taken to a place by his mother. After his brother is pronounced the boy who lived. Dumbledore doesn't believe its young Skyler but his brother Harry Potter. What he doesn't know is Harry has been living in Rapture.

Requirements:

- Skyler Potter is the Wrong Boy Who Lived

- Lily Potter must feel remorse and side with Dumbledore

- Harry must be a Little Brother only one

- Harry must be paired with a Big Sister

- Harry must somehow have a soul-bond with four girls three Little Sister and Hermione Granger

Other details:

-Fem Harry

- in this alternate universe Rapture is set in the same time as Harry Potter timeline. Harry becomes a little brother

A/N: I don't own Harry Potter or Bioshock

Chapter 1

Lily Marie Potter nee Evans sighed as she listened to her delusional husband, who was saying Skyler was the best and looked at her oldest child, Harry James Potter, who was sleeping soundly, knowing it was him who stopped the Dark Lord. But James wasn't having it, he strongly believed it was his little Skyler, he even pointed to the scar on his cheek, saying it was him, with a smug smile, as if he won this argument.

Lily and Dumbledore looked at each other as James continue to babble how Skyler was the Chosen One, she stopped believing in James after she saw how delusional he was, and how he started to create a plan to get rid of Harry, put him with her muggle relatives, Petunia and Vernon. Lily shook his head.

"No, James, I will take him somewhere. Somewhere where he grows up away from this place." She put her foot down on her "husband."

"Great then we can shower Skyler with love and happiness." James said smugly.

"No James, after I drop Harry off, I'm leaving you." He drops her mouth open like a fish "What do you mean, we belong together." He asks, and Lily shakes his head, "No James, your delusional and think Skyler is the supposed Boy who lived."

She looks at James. "That's because he is!" He looks hatefully at Harry who is in her arms resting peacefully, "That brat isn't my son." Everyone in the room all the Order of the Phoenix members looked in shock at James. Even Sirius scooted closer to Lily.

Lily Potter looked shocked at her husband "James I don't know you anymore, after this meeting we're done." James looked elsewhere and Lily looked at Sirius knowing he had a crush on her since fifth year.

^o.o^

After the meeting

Lily Potter took her son to a lighthouse, in the middle of the ocean and walks in, seeing the bathysphere, she takes a calming breathe and kisses his eldest son's head,walks into the sphere and turns it on, watching as the sunlight disappears from view.

She looks out the little window and watches as a city starts to appear. "This is your new home Harry, Welcome to Rapture."

That's the last time Lily Potter saw his son.

^o.o^

Six years later

Harry looks around at the outside window staring at the fish and tugging on his Big Daddy, he doesn't remember much only that there are Angels around the city and Little Sisters and that vents are a special place to hide from monsters. He doesn't really like the Little Sister's other than Di and Red their Big Daddy guard them while colour on the walls and the floor.

Harry likes his Big Daddy guardian he is always there to watching out for him. He doesn't call him Mr. Bubbles, but Wizard cause he keeps having flashbacks to this pretty lady with red hair and beautiful green eyes. He always wondered who she was but couldn't remember her name only knew she was important he called her his "Guardian Angel." He then looks around and tugs on his Daddy somewhere before he hears the shot rang out the bullet entering his Daddy's arm and his Daddy quickly picks him up and swings him on his shoulder before letting out a roar and trying to protect his cargo, his bonded but the mysterious man shoots him a few more times before shooting him dead. Harry unsure what to do backs up into a corner as the strange corner him.

The man picks up Harry and his hand starts to glow a soft soothing light before it gently lays on top of his head releasing him from the bonds and Harry's eyes turn back to a bright green and man gently hugs the small boy shushing him gently "It's ok. You're safe now little one." Harry starts to whimper and cry into the Unknown man's shirt and clinging to him desperately scared he might leave again.

"My name is Jack, Little One, What is yours?" The newly named Jack asks gently to the small dirty boy gently rubbing circles on . "Harry and I think my last name is Potter or something..." he answers through his little hiccups.

Jack hums softly calming the small body holding him close to his chest "Harry I need to take you to a friend then after I need to leave and finish something, ok?" He asks the small boy, Harry nods and looks at the vent and reaches for it. "Are you taking me to Mama Tenebaum?" Harry asks happily. "Mhm. She will take care of you then I will take care of you, is that ok with you?"

Harry nods. And that how Jack became Harry's new Guardian.

A/N: Here is the first chapter we won't be seeing much of Rapture but there will be a lot of references to the Underwater City.