Ok, so I took this as a challenge to keep my writer's block away. It's my first official crossover fic. For this the ages of the potterverse characters have been changed since the Iron Man movieverse is 21st century. I'm also including characters from the Marvel Comic Universe too. I hope you enjoy it.

Chapter One: Time Heals No Wounds

Lily walked out of the main conference of the Expo committee room, catching her breath. It'd been nearly a year since Tony had made her the CEO of Stark Industries and two months since their secret wedding. Life had become hectic since Tony became known as Iron Man and she had spent that time finally coming to terms as best she could with Harry's death. She missed him, and she missed James to a degree, but she realised that a part of her had to move on. It was July 30th and she was planning to finally visit the final resting place of her husband and son. She hated being back in England, but Tony's bloody expo had to stop off for two months.

She smiled as his arm snaked around her waist. "How's the Iron Baby?"

She scowled. "Don't call him or her that!" She whispered. Her pregnancy had been a huge surprise. Tony had spoken to her the night they found out about the baby. She reminded him that she never wanted to have another child, losing Harry had been too hard. After a lot of tears and an agreement that the baby would be safe she agreed to keep the baby and Tony proposed there and then. Of course they were keeping the news out of the public's attention.

He chuckled. "Couldn't resist." He kissed her cheek. "I've the transportation and security all set for Godric's Hollow tomorrow. You agreed to go and I've already gotten you the day off."

She nodded. "He would've been fourteen tomorrow. Probably have a girlfriend who'd drag him to that tea shop in Hogsmeade. I know it's time to see him, I have to...I have to see them..."

Tony nodded, walking around the Expo with her. "This new arc reactor is great. I'm pretty sure my liver is cleaning up years of partying thanks to it working overtime."

Lily frowned as she spotted the instantly recognisable face of her sister. "That's Petunia...why does she have to be here today..." She sighed. "Can we go-"

"You bloody freak, what the hell do you think you're doing?" She shouted at a young man. It wasn't her son, no Lily knew that Dudley had to have been the one beside Vernon, she could see the resemblance from the portly boy who had a disgusting smirk on his face.

Lily hated seeing any child being mistreated, especially after losing Harry. The thought of any child being unloved made her blood boil. She charged over to them, clearing her throat. "Excuse me, is there a problem here?"

Petunia turned to her, all colour draining from her face. "I-Impossible."

Lily grabbed the young man, hiding him from the Dursleys. "You ok kid?" Tony asked.

The young man nodded. "I'm fine, sir."

Lily frowned. "It's possible, believe me. Who do you think you are, attacking the poor kid like that?"

Petunia looked at Harry. "T-They said...you were..."

Lily scowled. "Get the fuck out of here, right now! Before I call the police."

Vernon pushed close to her. "See here, my wife was shouting at someone who was obviously up to no good. Who do you think you are, talking to my wife like that?"

Petunia nervously reached out, touching her face. A nervous sweat began to drip from her brow. "It is you...L-Lily..."

Lily looked at her. "You're a vile woman for attacking this poor kid, I mean his parents aren't here to back him up. Who do you think you are?"

Petunia shook slightly. "W-What kind of freakishness did you use to come back?"

Lily scoffed. "I just sacrificed your soul to Satan." She said sarcastically. She noticed the boy still had no one looking for him, so she turned to him. "What's your name, sweetheart?" She asked softly.

Petunia frowned. "D-Don't speak to strangers." She warned him nervously.

"You keep your mouth shut!" Lily warned. She knelt down to him. "May I have your name please?"

The boy looked at her. "H-Harry ma'am, Harry Potter." He frowned at his aunt.

Lily's hand went to her mouth. "I-It can't be..." She whispered.

Harry frowned. Her shock must have been about his whole boy-who-lived image. "I can prove it." He moved his fringe, showing a lightning bolt scar.

Lily fainted at the sight. Tony caught her just in time. "Could you please come with me, Harry?" He asked as calmly as he could.

Harry frowned. "Who are you?"

Tony chuckled. "Tony Stark. As in the Stark Expo and Stark Industries."

Harry blushed. "Sorry sir. I didn't recognise you without the...you know, the armour."

Tony smiled. He brought Harry and Lily to the private penthouse. He waited until Lily regained consciousness. "You ok?"

Lily looked over at Harry. "He can't be him..."

Harry frowned. "What do you want? Thank you for stopping my aunt, but I'm probably going to be grounded for the rest of the summer now for embarrassing her in public like that."

Tony grabbed a small device. "Put your finger on this." He said quickly.

Harry shook his head. "What do you want with me..?"

Lily sat up. "W-What's your date of birth, Harry?"

Harry backed away. "July 31st...1996. A-Are you going to hurt me..? I-I'll scream for help..."

Lily shook her head. "Is your middle name James..?"

Harry frowned. "H-How do you know that..?"

Tears began to fall from Lily eyes. "It can't be...they said you died..."

"Who are you?!" He shouted.

"Her name is Virginia Stark." Tony said softly. "She's had that name for a long time. But thirteen years ago her name was Lily Potter."

Harry pulled his wand out. "My mother died along with my father when I was a baby..."

Lily stood up. "I'm telling you the truth." She whispered. "And what did you mean Petunia will ground you? She's not on your guardian list." She whispered. "The device my husband is trying to use is a DNA sampler. It's to check genetics." She took it off Tony, placing her finger on it. "It takes some blood. Would you mind using it?"

Harry stared into her eyes. They were the same shining green as his. He timidly pressed his finger onto it.

"J.A.R.V.I.S, test the blood. We're looking for a maternal match." Tony said softly.

"The DNA is a match sir. Mrs. Stark is the boy's mother." A synthetic voice explained.

Harry looked at her. "It...it has to be wrong..." He started hyperventilating. "M-My mum's buried with my dad...Dumbledore told me so...Remus was at the funeral..."

Lily sat him down. "Harry?" She handed him a brown paper bag. "Breath into this."

Harry took the bag. "You said I was dead...how could you think that?"

Lily frowned. "The Daily Prophet..." She looked at Tony. "Where is it?"

He crossed his arms. "Lily...do you really think it's appropriate?"

Harry stared at them. "Show it to me!" He shouted.

Tony opened his briefcase, taking out an old clipping. "I kept this. This is from the 1st of November, I mostly kept it because your mom had a little break down when she found out..." He handed it to Harry.

Harry scanned the article, his breathing returning to a normal state. "It says you died too..."

Lily bit her lip. "I read that on November 1st at 7am...it's a long story."

Harry frowned. "I have time." He said in a neutral tone.

Lily sighed. "Ok." She whispered softly, sitting across from him. "Tony and I have been friends for years. When he was a child his father shipped him here for a couple of years with his mother. We kept in touch through our respective teenage years and when I married your father, Tony was on the guest list."

Tony laughed. "The day I went down the rabbit hole."

Lily held Harry's hand. "Tony learnt about magic that day by accident. Instead of obliviating him like we were supposed to, James and I decided to keep him in the fold."

Harry looked at Tony. "How long have you been married to my mother?" He asked, his voice strained.

"Two months now." Tony smiled at her. "We've been a couple for a little longer though."

Harry turned to Lily. "And you never thought about coming to check if I could've lived?" His voice turned colder than before as he asked the question.

Lily's eyes watered as she looked at him. "I...I felt so ashamed." She whispered. "The week before your father died, I suspected him of cheating on me. He'd come home late from supposed meetings smelling of perfume and lipstick stains on his collar."

Tony placed his hand on her shoulder. "Your mother had expressed interest in hiding out in America. So I invited you, James and your mum over for a week. But..."

Lily sighed. "James didn't want to go. We argued for a while and then I put you in your cot, kissed your forehead and told you I'd be home in a week."

Harry swallowed the lump in his throat, sniffling. "W-Was he cheating?"

Lily shrugged. "I don't know. I called on Halloween but a woman answered. I..." She whimpered. "I went out with Tony as a friend to finish our catch up." She whispered.

Harry wiped his tears away. "I need more proof. Dumbledore told me your body was found holding me."

Lily rubbed his back. "Do you have a way of contacting Dumbledore?"

He shook his head. "School's closed..."

Lily sighed. "Does he still hold positions in the Ministry?"

He nodded. "He's still the Chief Warlock of the Wizengamot." He said softly. "But I don't know where the Ministry of Magic is."

Lily sighed again. "I do... "

"Lily..." Tony stroked her cheek. "Are you sure about this?"

She nodded, holding onto Harry's hand. "I am so sorry sweetheart. I should've came back...but I washed my hands of the Wizarding World after...I thought I lost you..."

Harry gulped. He wanted to believe this woman, but with Pettigrew on the loose and Sirius still on the run, it wasn't easy. "If you are my mother...does that mean I get to live with you?"

Lily nodded. "Of course you can, sweetheart." She whispered.

Harry thought for a moment. "Who was the secret keeper?"

"Wormtail." She whispered. "It was your godfather's idea. I liked it, Peter was always trustworthy."

Harry frowned. "No he wasn't...h-he sold us out." He said coldly.

Lily gasped. "Did they catch him?"

Harry's eyes stared at nothing. "Sirius went after him...Peter lobbed off his finger and ran away as a rat after killing twelve muggles. Until last year Sirius was in Azkaban."

Lily frowned. "He's free now?"

Harry shook his head. "He escaped to help me. He's on the run." He whispered sadly.

Lily looked at Tony. "Get Happy and have a car brought here on the double. Tell him to set everything up. I want us at this location," She scribbled down an address. "In an hour."

Harry played with his hands. "I think I need some air..." He whispered.

Tony noticed Harry's breathing hadn't fully recovered. He helped him up and brought him outside. "So...um...I suppose I'm your stepfather."

Harry played with his sleeve. "If she is who she says she is...then yeah." He shrugged.

"You don't believe her?" He asked curiously, leaning against the wall.

Harry sat on the footpath. "In my experience, when something's too good to be true, it usually is. Maybe she is my mother, if so then karma has finally decided to stop shitting on my life. If not, then someone else has decided to take the piss."

Tony sighed. "Look, I'm not sure what I can say to convince you, Lily spent years trying to life without the pain of losing you. In her heart she still loves James, but I don't think it's as strong as her love for you. Now, enough soppy shit. Come on, we've a dumb old door to see."

Harry chuckled weakly. "Dumbledore." He corrected him.

Tony nodded. "J.A.R.V.I.S, contact Lily and tell her Harry's waiting in the car." He opened the door for Harry. "If Happy gives you any problems you have my permission to fire him."

The man in the driver's seat laughed. "Can't fire me anymore, Red's the boss now."

Harry waited for the two people to return. "So, you work for the Starks?"

Happy nodded. "I'm Mrs. Stark's head of security and personal chauffeur. And you are?"

"If I told you I'm her son would you believe me?" Harry asked sarcastically.

Happy frowned. "Don't be a dick. Pepper lost her son when he was a baby. Little punk."

Lily got into the car, frowning. "Don't call him a punk."

Happy sighed. "He's claiming to be Harry, Pep. I was warning him to show respect."

"Happy Hogan, meet Harry Potter." Lily's voice had a sharp tone to it.

Happy turned to the wheel. "Everyone buckled up?" He asked quickly. "Here we go."

-HS-

Lily walked through Diagon Alley with Tony and Harry, walking into Gringotts. She smiled at Harry, clearing her throat once they got to the teller. "I'd like to speak to Goblin Sharptooth about the Potter Account."

Harry frowned. "Why are we here?"

Lily placed a hand on his shoulder. "One second sweetheart." She placed a chain on the table.

The Goblin's eyes widened as he left the room for a second. "Why are we here?" Harry asked again.

Lily knelt down to him. "I'm going to prove I'm your mother." She held the chain. "This is the official Potter Family Lady's Signet Ring. Only the wife of the head of house can wear it. If I was dead, it'd be in the vault."

Harry nodded. "Ok." He looked away from her. He didn't want her to see the hope in his eyes. Too many people had let him down before.

Lily watched as the Goblin ushered them into a room. "Sharptooth, it's been a long time." She bowed her head.

Harry and Tony mimicked her. Sharptooth observed her carefully. "Lily Potter. It's...well I'm shocked to say the least. May I ask how you are alive?"

Lily explained her week in America with Tony and the fight between her and James. "I saw my son being berated by my sister and her husband. Sharptooth, was the will not enacted?"

Sharptooth shook his head. "Dumbledore came to us and explained that Harry was still alive. Until the trials were done they were going to hide the fact. We sealed the will when we realised that Sirius was imprisoned, Peter was dead...and Remus was refused by the Ministry. Werewolf laws have gotten stricter, Lily."

Lily sighed. "I see. Could you request Dumbledore's presence please? If he's sealed the will then he's the only one who can unseal it." She rubbed her forehead.

Harry sat motionless. "Y-You really are her...but you were in the nursery...I was found in your arms..." His voice was barely above a whisper, tears falling down his cheeks. "They said you were dead..."

Lily wrapped her arms around him. "Shh, it's me baby boy." She whispered, letting silent tears fall.

Sharptooth left the room to contact the Ministry. Tony placed his hand on Lily's shoulder. "I'll have Jarvis prepare the extra bed in the penthouse." He whispered. "We'll swing by his aunt's place to get his stuff."

Harry kept his hold on her. "I always wished for this day...except..."

She kissed his forehead. "Your dad's alive when you wish it?" She asked softly.

Harry nodded. "I can't wait to tell Hermione and Ron about this."

Lily smiled. "Are they you're friends?" She asked with genuine interest.

Harry grinned. "Yeah. Hermione's a muggleborn, she mental smart. Ron's a real expert in Quidditch and wizard's chess."

She watched as Sharptooth came back in. "Dumbledore will meet you in conference room five. I've informed him of everything."

Lily thanked him, walking to the conference room with Tony and Harry. She smiled a little as she spotted Dumbledore. "You haven't aged a day, Headmaster."

Dumbledore couldn't believe it when Sharptooth told him that Lily Potter had re-entered the mortal coil. But the second he saw those eyes and heard her voice, he knew it had to be her. "It is true..." He said in disbelief. "How?"

Lily explained for what felt like the millionth time about the week in America and her concerns that James had been cheating on her. She bit her lip as she sat down. "I snapped my wand and said I'd never return to the Wizarding World...Tony cancelled his subscription to the Prophet and I avoided all things magical." She looked up at Dumbledore. "Why did you report him dead?"

Dumbledore sat across from her. "The death of Voldemort caused serious problems for the Ministry and for England, Lily. I saw the scar on his head and knew you had activated ancient runes that only worked with blood family of you or James. After all you had borrowed the book from my personal library. Sirius was thought to be a traitor and the only option I could think of was your sister."

Harry frowned a little when he heard Petunia being mentioned. "I'm not going back to the Dursleys."

Lily smiled at him. "Of course you're not. You'll be living with me and Tony."

Dumbledore looked at them. "How long have you been married to Mr. Stark?"

Lily sighed. "Two months..." She bit her lip. Harry already seemed to be overwhelmed by all the shocks and she didn't want to pile things on him. "W-When we found out we were..."

Harry stared at her curiously. "Were what?"

Lily held his hand. "Since I found out I was pregnant, Harry. You're going to have a sibling in about four months time..."

Harry's eyes widened again and he collapsed onto the floor. Tony picked him up, chuckling weakly. "I think it got too much for him."

Dumbledore smiled at Lily. "Harry's not had the best life with your sister. I'd like to discuss things with you once you've settled with him. I'll personally send a house elf to Privet Drive to collect his things. It's good to see you, Lily. Or is it Pepper to me?"

She looked at Tony. "I think it's time I just went by Lily Stark."

He nodded. "Ok, Pep." He teased her. "Thank you, Mr. Dumbledore." He added after a moment.

Dumbledore smiled kindly at him. "Mr. Stark, I'd like you to be part of these conversations." He turned to Lily. "You'll be required to prove you're Lily Potter in the Ministry. I'll set it up for August first. 2:30."

Lily nodded, laying Harry's head on her lap. She stroked his hair lovingly. "Dumbledore..?"

He raised an eyebrow. "Yes?"

"Would my word clear Sirius?" She asked softly.

He nodded. "A memory of James casting the Fidelius Charm and naming Peter Secret Keeper will prove without a doubt that he's not the traitor. And his memory of the day Pettigrew escaped will exonerate him from murder charges."

Lily smiled. "Please have it organised. Harry hopefully has a way to contact him." She handed him a card. "Please dress like a muggle when you come to the penthouse." She smiled as Tony picked Harry up. "I'm bringing him...home."

Dumbledore nodded. "Lily?"

She turned to him. "Yes?"

He smiled sadly, bowing his head. "I'm sorry for making you live through that pain for all those years."

She kissed his cheek. "You were protecting him, sir. Just like Charlus would've done for your grandchildren." She left with Tony and Harry, heading to the penthouse.

Tony placed Harry in bed and fixed a blanket over him. "You ok?"

Lily nodded, kissing Harry's forehead. "I have my son, my husband and another baby on the way, I'm fine." She promised. "I need to get him a gift." She sighed. "I don't know a thing about him."

Tony looked at her. "It seems like the Professor knows him. He may have an idea."

A/N: I'll be the first to say I'm not the biggest fan of Dumbledore or Ron, so I'm going to limit any bashing of them in this story. The story will be updated on Thursdays from here on out. Also I'm not bashing James, Lily will learn that he was faithful and soon. Until next time, hope you enjoyed it.