A/N: So a few years ago, I was really big into fanfiction and read and wrote a lot. Now I'm only mildly into reading it but still enjoying writing it very much. However, I feel I should warn you now, this story will be slow to update. Very slow.

This is a Kingdom Hearts/Harry Potter AU crossover. The main characters will be Sora and Roxas (who are twins in this), Harry, and Cloud. As of now, there are no pairings. If that changes later on, I will let you know.

Also, I have no beta, so there may be a couple mistakes scattered about. Apologies in advanced for them.

Chapter One: Leaving

Cloud woke up slowly, blinking his eyes as the morning light assaulted them. He groaned in annoyance and pulled his blanket over his spiky blonde hair. Just as he was about to fall back asleep, a creak caught his attention, followed by the sound of soft footsteps. The overwhelming feeling of being watched forced Cloud to pull the covers down and look towards his bedroom door. Standing there were two small boys, both sporting gravity defying hair. To anyone else, the boys were identical, but Cloud could spot the small differences between his twin brothers. Sora was the bolder of the two; he had lead them into the room. Roxas hung back, ready to run if Cloud became angry for being woken up.

"What do you two want?" the teenager demanded.

The little boys looked at each other. On cue, both their stomachs growled loudly.

Cloud lay back down. "Go wake up mom if you're hungry."

"Momma's not home," Sora's squeaky voice said.

"Then get dad."

"Daddy's gone too," Roxas said.

Frowning, Cloud sat up. It was unlike his parents to leave before breakfast. The few times they had in the past, they always let Cloud know beforehand so that he could wake up early and take care of his brothers.

"Go downstairs, I'll be there in a minute."

The twins ran out of the room and stomped their way to the kitchen. Cloud rolled his eyes and headed to the bathroom. He took care of his morning business before stopping and knocking on the door to his parent's room. When no one answered, Cloud peered inside. The room was immaculate and empty. His brother's had been telling the truth; his parents were gone.

Shrugging, Cloud made his way to the kitchen. He smiled lightly as he entered and saw Roxas and Sora sitting at the table with large bowls in front of them. He walked over to the cupboard.

"You want the marshmallow cereal or rice crispy?"

"Pancakes!" the boys yelled in unison.

Cloud glared at them. "You're getting cereal. Pick one or I'll pick for you."

"Marshmallow!" Roxas said.

"Both!" Sora exclaimed with a large grin.

Roxas looked at Sora in shock. "We can have both?" he whipped around to Cloud. "I want both too!"

Cloud rolled his eyes but grabbed both types of cereal. He didn't feel up to arguing with a couple of six year-olds so early in the morning. After pouring the cereal, Cloud grabbed the milk from the fridge. He sighed as he realized there was only enough left for his brothers' breakfast. He poured the milk and tossed the carton away, walking to the counter where his mother kept the shopping list.

Cloud picked up the notepad and paused as he a folded piece of paper fell out of it. Curious, Cloud opened the note and frowned in confusion. His mother's neat handwriting spelled out a simple message.

We love you all. Please don't ever forget that.

Underneath the message was his father's handwriting, spelling out bank account information, passwords, answers to security questions, and his and his wife's social security numbers. Cloud quickly left the kitchen to go to his father's den. Important information like this shouldn't be left lying around; he needed to put it somewhere safe right away.

Cloud opened the door to his father's study and stopped in surprise. His father was a computer technician and his den was always full of computer parts and various lap tops. Today, however, it was clean with no sign of computers anywhere. His dad's desktop and laptop were gone and the room was clean.

A noise behind him startled Cloud and he turned to see his brother's standing in the doorway, watching. Cloud frowned.

"If you're done with breakfast, go get ready for school."

The boys dashed off, laughing. Cloud sighed as he heard them stomp upstairs. He placed the note with all the information in the top drawer of his father's desk and left, shutting the door behind him. A loud crash and sudden silence from upstairs made Cloud sigh.

"If you two broke something of mine, you're in big trouble!" he shouted.

He heard his brothers slam a door and shook his head. Whatever they broke, Cloud would make sure to tell his mother and let her deal with it. Right now, he needed to get ready for school.

"I'm home!" Cloud shouted, entering the living room and tossing his backpack down. He paused, waiting to hear the sound of stomping feet and yelling that always occurred when he got back from school. His brothers were in first grade and so got out of school before he did. They always greeted him by running down the stairs and crashing into his legs.

Today though, no one came to see him at the door. Figuring their mom probably took the twins out of ice cream, Cloud head into the kitchen to make himself a snack. The answering machine blinked with a new message and the teen hit play on his way to the fridge.

"Two new messages. First new message, received at 1:45pm." The mechanical voice of the machine was replaced by the soft voice of a woman. "Hello, this message is for Mr. or Mrs. Strife. This is Mrs. Callaway at the elementary school. Roxas and Sora missed the bus today. They're both waiting with the after school program but someone will have to come pick them up. Please give us a call so we know when you're coming."

The message ended and Cloud rolled his eyes. The next message began. "Second message, received at 2:56pm." The same soft voice from the first message was back. "Hello, this is Mrs. Callaway again at the elementary school. We haven't heard from you yet and just wanted to make sure you got our message that you need to pick up Sora and Roxas from school today. The after school program does end at three. Please call us as soon as you get this, thank you."

Cloud glanced at the clock as the message finished playing. It was 3:30. His mother was probably at the school right now or on her way home. His dad didn't get off of work until four. Cloud finished making his sandwich and was just about to walk into the living room when the phone rang. He snatched it off the hook.

"Hello?"

"Hello is Mr. or Mrs. Strife available?"

"They're not here, can I take a message."

"This is Mrs. Callaway from the elementary school. I've been trying to get a hold of them all afternoon. Roxas and Sora missed the bus and need to get picked up."

Cloud swallowed a bite of his sand which. "I thought my mom was already there."

"No one has called and all the other students have left. I can stay with the boys but I need to be home by four."

"Okay, I'll call my dad at work and see if he can leave early. Thank you for staying with them."

"Of course. See you soon."

Cloud hung up and dialed his father's phone number. It rang twice before a loud voice answered. "Computer Parts and Repairs, this is Collin, how may I help you today?"

"Hey Collin, it's Cloud, is my dad there?"

"No actually," Collin's voice was surprised. "He didn't come into work today. Didn't call or anything."

"He didn't come in today?" Cloud repeated in shock.

"No, I was a little worried, it isn't like him to not show up."

"Yeah..."

"Everything okay, Cloud?"

"Yeah, I've got to go. Thanks Collin."

Cloud hung up the phone and turned to go to the garage. He was really starting to get worried about his parents now. He opened the garage door and was shocked to see a brand new car sitting there. It was a yellow, four door vehicle. The paint was so new it shined even in the dim light of the garage. Cloud spotted a note on the windshield and grabbed it.

His father's untidy handwriting greeted him. Cloud, an early birthday present. It's completely paid off and the insurance is paid in full for the next year. Please don't ever forget how much we love all of you.

Cloud barely stopped himself from jumping up and down in joy. His parents had gotten him a new car! He ran around to the driver's side and climbed in. The interior smelled like new leather and plastic and Cloud took a deep breath, savoring his first moment in his new car. The keys were in the ignition and he started the car, smiling widely when the engine turned over, purring quietly. The speedometer read ten and Cloud barely managed to control a happy giggle. The car was so new it had only ever been driven ten miles.

He looked at the back seat and frowned slightly, seeing two child seats buckled into the back. He supposed he couldn't complain. His parents must have paid a lot of money to get him this gift, the least he could do was put up with having to drive his brothers around sometimes. Suddenly remembering his brothers, Cloud decided he would go to the school. If his mom beat him there, he was fine with that. It would give him an excuse to drive around his new car.

Cloud parked his car in the driveway. His mother liked to park in the garage and he wanted the neighbors to see his new ride. Sora and Roxas were laughing in the back seat, exclaiming how awesome the new car was. Cloud unbuckled both of them and the twins ran inside the house, calling out loudly. Cloud followed them in, shutting the door.

"We're home!" he yelled. "I went and picked up the twins in my new car!" Cloud peeked into the living room, looking for his parents. "I'm sorry if I wasn't supposed to use it yet but I found it in the garage. It's freaking awesome!" Cloud knocked on the door to his dad's den. "Dad?" he peered inside but it was empty.

Roxas and Sora came down the stairs, looking confused. "Mommy and daddy aren't here."

Cloud frowned and walked through the kitchen to the garage. His parent's car was still gone. "They must have gone out and forgot to tell us." Cloud shrugged, ignoring the nagging feeling in his chest that something was wrong. He looked down at his brothers; the little boys were biting their lips worriedly. "Well runts, I guess you're going to starve tonight."

The twins looked up at him, horrified.

"But we're hungry!"

"Yeah really hungry!"

Cloud shut the door to the garage. "Well I guess I could feed you dinner. But don't get used to it."

Sora and Roxas ran into the kitchen and threw themselves into chairs. They smiled at Cloud, the picture of innocence. Cloud rolled his eyes and made his way to the fridge to see what was in there he could make.

The next morning, Cloud woke up with a jolt. He rubbed his eyes and looked around the living room. After putting the twins to bed the night before, Cloud had come downstairs to wait in the living room for his parents to arrive home. He wanted thank them for getting him a new car. The sun was just starting to come up and Cloud stretched. He wandered to the kitchen and stopped, frowning at Sora and Roxas. His brothers were sitting at the table, holding hands and looking sad.

"What are you two doing awake?" Cloud asked, making the boys jump. "You don't need to be up for another couple of hours."

"Mommy and daddy still aren't home," Sora told him quietly.

"What?"

Cloud turned around and climbed the stairs two at time. He knocked gently on his parent's bedroom door before sticking his head in. The room was exactly as it was yesterday. The bed didn't look like it had been slept in at all. Turning on his heel, Cloud went straight to the garage. He opened the door and was shocked that his parent's car wasn't there. It was too early for his father to have gone to work and his mother was a stay at home mom. Cloud shut the door and turned to see his brother's staring at him hopefully.

"They probably had something to do early today," Cloud assured the boys. "Go back to bed. I'll get you up when it's time for school."

The little boys reluctantly did as they were told. Frowning, Cloud searched the counter, hoping to find a note from his parents explaining their absence. When he came up empty handed, Cloud searched his father's den, but again came up empty handed. Worried, Cloud tried to call their cell phones, but was shocked when each number came up disconnected. Not knowing what to do, Cloud made his way upstairs to shower and hoped that his mom and dad would be back by the time he was done.

When Cloud arrived home from school that day, he was worried when he found no sign of his parents. He barely had time to look in the garage for a car when the doorbell rang. Quickly, Cloud answered it.

"Cloud!"

Cloud was almost knocked over as his brothers tackled his legs. He placed a hand on each of their backs, noticing that Sora was crying.

"Hey runts..."

Cloud looked up to see his neighbor, Mrs. Lane standing in the doorway. She looked unhappy and was peering inside the house curiously.

"Cloud, are your parents' home?"

Cloud shook his head. "Not right now. What's going on?"

"Your mother didn't meet the bus today," Mrs. Lane explained. "Sora and Roxas were locked out of the house."

"Mommy said if we ever get locked out to go to Ms. Lane," Roxas explained.

Cloud smiled at him. "That's right, I'm proud of you for remembering that."

"I remembered too!" Sora cried.

"Good job, Sora," Cloud soothed. "Why don't you two go upstairs and play? I'll come check on you in a minute."

The twins nodded and dashed away, stomping loudly. Cloud turned to his neighbor. "Thanks for watching them."

"Of course. Is everything alright?"

The teen hesitated. "I don't know..." he looked the woman, worry shining in his eyes. "I haven't seen my parents since before yesterday."

Mrs. Lane looked concerned. "Are they alright?"

Cloud shrugged. "I don't know. Dad hasn't been to work and both their phones are shut off."

"Cloud, that doesn't sound right. Perhaps you should call someone?"

"Yeah," Cloud agreed slowly. "I'll call some of their friends. Maybe my dad's work too."

"Okay, you'll let me know if you need anything?" She placed a hand on his arm. "I'm sure everything's fine, Cloud."

"Yeah, I'm sure everything's fine too. Thanks Mrs. Lane."

The next morning Cloud jolted awake. The living room was empty and he hurriedly checked the house, finding no sign of his parents. Sora and Roxas woke early again and cried when their mother still wasn't home. Cloud had a rough morning getting them ready for school. Once they were safely on the bus, Cloud began calling everyone he could think of that might have talked to his parents. He skipped school, growing more and more worried as every person he spoke to told him the same thing; they hadn't heard from his parents recently and had no idea where they were now. When Roxas and Sora got off the bus, Cloud sent them to Mrs. Lane's and then drove to every place he could think of that his parents might have gone.

Cloud arrived home at nine that night. He went to Mrs. Lane's house to get his brothers and the woman invited him inside worriedly.

"The boys are sleeping upstairs with Conner," Mrs. Lane informed him. Mr. Lane was in the kitchen, reading the newspaper. He set it aside when Cloud walked in.

"Not that we don't mind helping out with watching the twins," Mr. Lane began, "but where is your mother?"

"I don't know," Cloud admitted. He sat in the chair Mrs. Lane offered gratefully. "I've looked everywhere, talked to everyone I can think of; I have no idea where they are."

"They didn't leave a note? Did they have vacation plans that you forgot about, maybe?"

Cloud shook his head, looking lost. "No. I have no idea where they are."

Mr. Lane stood while Mrs. Lane placed a hand on his back and rubbed gently. Mr. Lane held out the phone Cloud. "I think you need to call the police, Cloud."

Cloud swallowed, staring at the phone with apprehension. He took it slowly, looking up at his neighbor. "What am I supposed say?"

"The truth. Your parents haven't been home and you need help finding them."

Shakily, Cloud nodded. He dialed the police and smiled appreciatively as Mrs. Lane squeezed his hand in support. An operator answered the phone in a crisp voice.

"Police department. How I can help you?"

"Um... I think I need to report two missing persons..."

Six months later, Cloud was frantically packing boxes. He had promised himself that he would only take what they absolutely needed but even the essentials were turning out to be more than he thought. He carried two boxes at a time downstairs and left them by the garage door. Sora and Roxas would be dropped off by the bus anytime and Cloud needed to leave as soon as they arrived. The stupid woman from social services would be there at two and she had made it perfectly clear that Sora and Roxas needed to have a bag packed and be ready to go.

Cloud ran back upstairs and looked around his brothers' room. He grabbed Roxas's favorite toy truck and Sora's stuffed panda. The little boy hadn't slept once without the beat up panda since their parents' disappearance six months ago. He then quickly entered his room and started shoving clothes into the boxes he already had waiting in there.

Cloud stopped abruptly when he heard the door open and close downstairs. He looked at the clock and panicked. Sora and Roxas weren't supposed to be home from school for another ten minutes! Did the bus come early today? Cloud had wanted to be finished packing before they arrived so that he could throw them in the car and leave. There was a slam from downstairs and Cloud heard crying. He hurried down the stairs and stopped dead in his tracks, dropping Sora's panda and Roxas' truck.

His mother was standing in the hallway, covered in dirt. Her clothes were large and she had lost weight. Her normally spiky blonde hair was flattened down with grease with dirt. Her face had a cut in it and Cloud was sure the red staining her clothes was dried blood. She was currently fussing over a little boy who looked about the same age as Roxas and Sora. He was crying, the tears leaving streaks on his dirty face.

"Mom?" Cloud's voice was barely above a whisper. His mother froze and whipped around, looking surprised.

"Cloud?" she exclaimed. "What are you doing? You're supposed to be in school!"

"School?" Cloud repeated. "School? I haven't been to school in six months! Not since my parents disappeared without a trace!"

The little boy began to cry again and his mother turned to soothe him. "Oh shush, Harry dear, everything's going to be fine."

"Mom!" Cloud yelled. He stepped forward in disbelief. "Is that really you?"

His mother stared at him, tears gathering in her eyes. "Oh baby..." she ran forward and enveloped Cloud in a tight hug. Cloud returned it fiercely. All this time he had been terrified his mother had been dead. The police had given up the search, not having any clues or leads to follow.

Reluctantly, Cloud pulled away. "Where's dad? Is he okay?"

"Yes, your father's fine. He's waiting for me now..."

"Mom this great!" Cloud's voice was colored with excitement. "You have no idea what we've been going through since you left. Social services is going to take Sora and Roxas away—"

"What? Cloud no! You mustn't let them take away the twins. They have to stay with you, with family!"

Cloud was taken back by the woman's shouting. "Well yeah, but it's not a problem now, right? You're back. They can't take them away if you're here."

"Oh baby..." Cloud's mother burst into tears. Cloud stared at her in confusion.

"Mom?"

"Baby I can't come back, not now. Believe me, I would love to but it's just too dangerous!"

"What do you mean, dangerous?"

"Cloud, listen to me." His mother grabbed his face and looked him in the eye. "I love you and the twins more than anything in this world. Your father does too. But right now, we have to stay away. I'm putting you in danger just by being here."

"What danger?" Cloud demanded. "Mom, what's going on?"

"I'm sorry." Tears spilled from her eyes and she wiped them away quickly. "Here!" she turned to the little boy, who Cloud had forgotten about, and grabbed a piece of paper he was clutching. "It's all in here. I have to go."

"Go? Go where?"

"Cloud baby, listen to me. I need you to take this little boy in. He's the same age as the twins but you need to take care of him, okay? Promise me!"

"Mom—"

"Cloud! I don't have time! Promise me you'll take care of this boy!"

His mother looked slightly crazed as she stared at him. "Okay," Cloud agreed, unsure of what else to say or how to turn her down. "Okay, I will."

"Good, good!" she turned quickly to the little boy and knelt in front of him. "Harry, darling, this is Cloud. This is the boy I told you about. You're going to be staying with him now, okay?"

"No!" Harry shouted. "I want my mommy and daddy!"

Cloud's mother frowned and tried to flatten the child's unruly hair. "Oh Harry, I told you, you need to forget about them. You're going to live with Cloud from now on. And remember? I told you about Roxas and Sora? They're going to be your new brothers! You've always wanted brothers, haven't you?"

The little boy broke down crying again and the woman hugged him tightly. She pulled away and stood up, turning back to Cloud. "I have to go now."

"No, mom—"

"Cloud I love you!" she interrupted, kissing his cheek. "Please don't ever forget how much I love you and the boys. I'm so sorry."

"Mom you can't go!" Cloud grabbed her arm, startled with how thin and frail it felt in his hand. "Whatever's going on, I can help!"

"You are helping, Cloud," she smiled warmly at him. "I love you so much."

Without warning, she jerked away and ran out the door. Cloud hurried to follow her and watched as she ran into the arms of a man he didn't recognize. She smiled sadly, tears falling from her eyes as she stared at Cloud. Before Cloud could stop the two, they vanished into thin air with a crack. Horrified, the teen stood on the porch of the house he was about to abandon, clutching his mother's note in his hand. No one was on the street to witness the sudden departure.

The sound of crying snapped Cloud out of his shock. He turned to see the little boy, Harry, standing in the hallway, sobbing. Cloud quickly turned back inside, shutting the door behind him. He opened the letter his mother had given him and read it over quickly.

Dear Cloud

I am so sorry I can't see you or the twins. I am so sorry that your father and I left you like this. Please know that we love you all dearly. I don't have time to write a letter explaining things, but I promise, someday we'll tell you the whole story.

This little boy is named Harry Potter. He's six, just like Roxas and Sora! I know you must be overwhelmed taking care of them but I believe in you. I'm sorry to just drop this boy off and ask you to care for him too, but he has nowhere else to go. His parents are dead and when we tried to leave him with his only living relatives they treated him horribly. We didn't know where else to send him until I thought of you.

In his backpack you'll find legal papers stating that his name is Harry Strife and he's a biological son of your father and I. You can explain his looks by saying he took after your grandfather on your father's side. I realize I'm asking a lot but please look after him in addition to your brothers. Treat him as one of the family, because that is who he is now, family.

I hope to see you soon, son. Please don't ever forget how much your father and I love you.

The note was unsigned and Cloud read it over once more, just in case he had missed something. When he was done, he looked at the boy, Harry, standing in the hallway. His green eyes were staring at him, wet with tears. Cloud didn't know what to say as he stared back. The door opening broke the silence and Roxas and Sora walked in, both looking gloomy. They stopped in surprised.

"Who's this?" Sora asked.

Cloud wasn't sure what to say. He looked at the note in his hand then back at his brothers. Straightening, Cloud shoved the note in his pocket.

"His name's Harry. I want you two to take him to the kitchen and wait there for me."

"What's happening?" Roxas asked.

"Do as I say, now!" Cloud snapped. The three children jumped in surprise and Harry shrank away from him fearfully. Cloud didn't say another word as he ran upstairs to finish his packing. He made quick work of his room, tapping the boxes shut and hurling them downstairs. He paused as he passed his parents' room and looked inside. It was exactly as they had left it six months ago: immaculate. Cloud shut the door and ran downstairs.

The boys were sitting at the table. Harry was as far away from the twins as he could get, still crying. Roxas and Sora were staring at him in confusion. They looked up as Cloud entered, watching as he carried boxes out into the garage and packed the car.

"What's all that stuff, Cloud?" Sora asked.

"It's our stuff," Cloud said quickly. "We're moving."

"What?" the little boys exclaimed in shock.

Cloud put the last box in the car and waved his brothers to him. "In the car, now."

"But I don't want to move!" Sora cried and Roxas nodded quickly in agreement.

"We don't have a choice." Cloud stopped his frantic movements and took a deep breath. He knelt down in front of his brothers. "Listen runts, if we stay here, a woman from social services is going to take you away from me."

"NO!" the twins yelled together.

"I don't want that either," Cloud assured. "That's why we're leaving. We'll go somewhere else and start over. Somewhere where we'll be safe."

The little boys nodded, wiping away their tears.

"Good, now get in the car."

They scrambled to obey and Cloud turned to Harry. The little boy had stood and was clutching his backpack like a lifeline. Cloud approached him but stopped when Harry stepped away.

"Okay look, I don't know what's going on, but my mother wants me to take care of you. I told her I would, so you've got to come with me now."

"No!" Harry screamed. "You'll just throw me under the stairs and leave me there!"

Confused, Cloud forced himself not to lose his temper. "Look, kid, I don't know if the place I find will even have stairs."

"Then you'll put me in a closet!" Harry shook his head. "I just know it!"

"I'm not going to put you in a closet," Cloud said slowly, trying to hide his frustration. "Whatever you're afraid of, I promise I won't do it to you." He looked at the clock; it was almost two. The woman from social services would be there any minute. Cloud wanted to leave before she arrived.

"You won't send me to bed without supper?"

Cloud stared at the kid. "No, you'll always get fed before bed, promise."

"And breakfast before I go to school?"

"Yes."

"And you won't smack me when I act like a freak?"

"What?" Cloud shook his head. "No, I won't hit you for any reason, ever. Anything else?"

Slowly, Harry shook his head. He took a step toward Cloud. "You won't let those other boys beat me up?"

"Roxas and Sora wouldn't beat you up with or without me around. They don't have a mean bone in their body." Cloud stepped forward and swooped Harry up. "We're out of time, we've gotta go."

Cloud hurried into the garage, pressing the button to make the door go up. He opened the door and cursed to himself as he realized he didn't have a third car seat for Harry. Roxas and Sora were strapped in, watching him curiously. Cloud set Harry down on the floor of the back seat in between the twins.

"Keep your head down, okay Harry?"

Harry nodded and made himself comfortable as he could. Cloud shut the door, running around to the front. He climbed in and started the car. With a squeal of tires, Cloud pulled out of the garage onto the street, not caring when he knocked over a trash can. He sped away from their house just as black car drove around the corner. Cloud didn't allow himself to relax until they were on the highway, heading north to who knew where.

A/N: So that's the first part. If you happen to know any good, well written KH/HP crossovers, please share them with me! I don't care about pairings, just good writing. Hope you enjoy, please review!