Summary: Tony Stark finds himself in a world he has no memory of where Thanos isn't a problem. Yet. Is history doomed to repeat itself or will he discover a way to help his team in both the old world as well as the new? Will he find a way to return to his old world or will new bonds that he's formed make him want to stay?

Featuring: Tony Stark, Pepper Potts, OC, All the Avengers, and others.

Setting: Post Infinity War. Sort of.

Notes: I've always loved these movies. Been wanting to write an Avengers fic for a while now.

Everything just crumbled away within his grasp. A mixture of grief and guilt surged through Tony Stark. Nebula kept her distance not knowing what to say or do. Unknowing if either of them were next. Though it felt like hours, it was only minutes later that he finally stood up. He took a few steps toward her only to collapse to the ground. She checked him over and realized he had only passed out. Shaking her head, the alien woman dragged him to the nearest shelter that she could find and let him rest.

A groan fell from Tony's lips as his brown eyes fluttered open only to squeeze back shut at the sight of a bright light shining over him. His body shifted a little and it was only then that he realized that he was laying in a bed. Startled, he sat up patting his body down and sure enough he wasn't in his broken armor. He wasn't even sore. Getting up slowly from the bed, Tony walked over to the window and peered outside. New York. He was in New York. Shutting the curtain, he turned around recognizing that he was in his and Pepper's bedroom in Avengers tower. It made no sense to him. He had sold it and even if he hadn't, how had he ended up there relatively unscathed? Feeling even more confused, he headed into his bathroom washing up before venturing out of his room. It was relatively peaceful in the building as thoughts raced through his mind.

"Sir, Mr. Parker is waiting down in the labs for you." An all too familiar voice spoke out catching Tony off guard.

Snapping out of his daze after a moment, He made his way downstairs toward the labs. "Thanks J.A.R.V.I.S. Wait, J.A.R.V.I.S? That's.. that's not possible. You're..."

"Sir, are you alright?"

He shook his head running his fingers through his hair. "Yeah, I'm alright."

Tony walked into his lab area only to see that Peter Parker was indeed there. "Peter..."

"Oh hey, Mr. Stark." The teenager waved greeting him as he looked up from the web shooter that he was tinkering with at the moment.

Before he could stop himself, he pulled the younger man into a hug. "You're okay."

"Uh yeah, I'm fine. I was already pretty low when the shooter malfunctioned." A confused expression appeared on Peter's face.

Tony composed himself letting go of the boy. "The web shooter. Right."

"Mr. Stark, are you okay?" He asked watching Tony pick up the device.

He nodded his head, "Yeah. Crazy morning."

Despite his protests, Tony shooed Peter out of the building a short time later insisting he either go do something fun with his friends or go spend time with his Aunt May. Pepper could only watch from afar as the teenager gave in leaving the building with a sigh. She approached Tony from behind placing her hand upon his shoulder delicately.

"You're going to make an excellent father, you know."

The sound of her voice instantly relaxed him and he turned around to face her. "You think so, Pep?"

"I know so." The strawberry blonde smiled resting her left hand against her growing stomach.

His eyes trailed down nearly bulging at the sight. "Pepper..."

"I didn't lose it. I put it on a chain because it doesn't fit at the moment." Pepper gestured to the necklace around her neck where an elegant engagement ring wedding band set hung nestled within her now voluptuous cleavage.

Before he could respond, a brunette in a charcoal hued skirt suit approached the couple greeting Pepper and talking about the baby for a few moments.

"So is my nephew behaving today?"

Tony looked at the brunette confused. "I'm sorry. I must have heard wrong. Did you say nephew? Pepper doesn't have any siblings."

"Well no she doesn't, but she has a sister in law. Aka me. Your little sister." The brunette responded only for both of the women to gasp when Tony collapsed.

Bruce Banner looked over his best friend's vitals while said friend lay in a bed in the medical bay slowly coming to. J.A.R.V.I.S had relayed to them that Tony had been acting a bit off since he had awoken earlier in the day. They were concerned though his vitals appeared to be normal and healthy.

He sighed looking over at Tony. "How are you feeling?"

Tony rubbed his face and sighed sitting up. "Just fantastic."

Bruce noted the sarcasm and shook his head. "We're going to run a few tests. First, I'm going to ask you a few questions and I want you to answer them the best that you can."

He eyed his friend skeptically before shrugging his shoulders. "Fine."

"What's your full name?"

"Anthony Edward Stark. Born Friday, May 29th 1970 to Howard and Maria Stark in Manhattan, New York."

Bruce jotted some notes down and chuckled. "Ever the over achiever, aren't you?"

Tony smirked slightly. "Well you know me."

"When was your sister born?"

"I don't know. Bruce, I never had a sister. I'm an only child."

He frowned jotting another note down. "When did you become CEO of Stark Industries?"

"1992."

"When did you get married?"

"I..I don't know."

Bruce peered at him over the rip of his glasses. "Tony, what is the last thing you remember?"

He thought about it for a second. "Some woman claiming to be the sister I never had."

"Elizabeth Ana Stark was born to Howard and Maria on October 26th, 1986 via surrogate. It was considered a miracle at the time since gestational surrogacy was relatively new back then." The brunette spoke up catching both of their attentions. "And yes, that's me."

Tony listened to her while shaking his head. "And I'm telling you that's just not possible."

The brunette rubbed her temples leaning against the counter in the communal kitchen of the tower waiting for the teapot to finish boiling. She couldn't think of anything that happened the night before that could come close to even possibly explaining what was going on with her big brother. A hand was placed on her shoulder comfortingly and she jumped slightly clearly startled only to realize that it was just Bruce.

"Sorry. I didn't realize it was you."

Bruce shook his head smiling slightly at her. "It's fine. You've had a tough day."

"Not as tough as Tony's. It just doesn't make sense. Pepper said everything was normal when they went to sleep. If anything, the most unusual thing would be that he actually slept more than four hours for once." Elizabeth sighed moving to grab some mugs from the counter.

The familiar whistle of the teapot soothed Bruce and he moved to help her with the tea. "His vitals are normal which is a good sign. Once we get some scans of his brain, we should know if the loss of memory is physical or... something else."

"I'm calling Steve. I know he's in Wakanda right now, but it'd be a good idea to cover all our bases. Make sure no one else is having memory issues like Tony." She finished preparing her cup of tea blowing at the top of it lightly to cool it off a little.

He did the same before taking a sip of his tea and sighing. "Usually I'd say it would probably be a good idea to hold off until we know something more concrete, but it's Tony. Plus even if we all said not to, I know you'd still make the call."

"Yeah, I would."

It was after midnight when Tony crept out of the tower. Everyone was either asleep or oblivious to his movements. He quietly made his way down to where the New York Sanctum was located and approached the front door. Before he could knock, the door swung open revealing Doctor Stephen Strange. He eyed Tony curiously for a moment and then gestured for him to come into the building.

"I knew you would be stopping by."

Tony appeared surprised rubbing at the back of his neck nervously. "You did?"

"Yes, but I'm afraid I won't be of much help." The Eye of Agamotto seemingly glowed as it hung from the chain around his neck.

He pondered the sorcerer's words for a moment shaking his head. "You know. You're probably the only person in this world that knows what I know."

"I am, yes. It came to me this morning. I presume right around the time you woke up." Dr. Strange sat down watching the genius inventor.

Tony began to piece things together a little bit. "But..."

"You are Tony Stark. You are from this world, but you are also from the world that you know. Going from a traumatic existence to a more.. well..happier one..can have its effects." He spoke studying the other man's presence.

The older man paced a bit shaking his head. "What does that even mean?"

"It means your mind is the dominant one. But don't fret. Like I said, you're this world's Stark too. Go home and rest. It will come to you." Stephen assured him.

Tony stared at him in disbelief. "That's it? Just go home."

"It's the only way."

Before he could respond, Tony found himself suddenly back in his room in the Avengers tower. He sighed setting his shoes out of the way and crawled into bed. Pepper instinctively turned toward him snuggling against his chest. His hand rested flat against her stomach and a soft smile appeared on his face at the small flutter of movement that he felt.

Elizabeth was a precocious child. She was usually seen with a book in tow and always asking questions. The little girl was the apple of her father's eye which led to a little resentment from her big brother. Howard by then had settled down some and realized he didn't want to make the same mistakes missing out on so much like he had with Tony. She had frequent visits with her 'Aunt' Peggy Carter and loved hearing stories from the older woman's past. To the little brunette, they were exciting adventures. Elizabeth was eight when Jarvis passed away one night in his sleep unexpectedly. It hit her hard. He had been like an uncle to her. She found refuge within Tony's lab with him ultimately making up a comfortable spot for her to hang out away from the dangerous areas of the lab. It seemed to work well until one day a few weeks later that he heard her sniffling.

Tony sighed as he stopped what he was doing and bent down to her level. "What's the matter, Eli?"

"I miss Jarvis." She pouted, face splotchy with tears soaking her skin.

He pulled her into a hug comforting her though it was only when she calmed down that he spoke again. "I miss him too, kiddo. Hey, you want to help me test out one of my new programs?"

"Can I really?" Elizabeth appeared to perk up a bit as her brother grabbed a tissue drying her face gently.

Tony nodded his head picking her up as he got to his feet. "Of course you can. You're my best beta tester."

"Okay. What do I have to do?" She giggled slightly watching him adjust some settings.

He made a funny face at her and then smiled whispering softly. "Alright then. All you have to do is say Jarvis' name out loud clearly."

"Jarvis?" His little sister eyed him curiously completely unaware of what was about to happen.

"Hello Elizabeth." The English accented AI spoke and Tony could only watch as the little girl's face lit up.

"Jarvis!"

Tony chuckled softly at her enthusiasm. "Now I know it's not really the same, but now you can talk to him whenever you want. He'll answer questions and help you however you can. Just not with your homework, oka..OOF!"

"You're the bestest big brother ever, Tony!" Elizabeth had cut off his words by hugging him tightly.