Title: Night Falls for a Monster

Disclaimer: I own none of the original story; it all belongs to some other guy.

Summary: When Casey was younger, he handled a killer. No one else is quite aware of this aside from the General, but when Sara get's kidnapped by someone, Casey has to call upon said killer for help. CaseyXOC(male), ChuckxSara(kinda).

Warnings: There's gonna be m/m relations later… or sooner… and probably quite a bit of violence and gore, somewhat.

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Chapter 1- Prologue

It was about four o clock in the morning. A twenty-three year old Casey was moving silently closer to a house that the government had been investigating and found it to be owned by a child-slave ring leader.

The group of men that were edging closer to the house heard someone scream from inside the house. They all looked at each other, their leader nodded and the five men ran to the house, kicking down the door and securing the area.

Some of the men in front of Casey hesitated as they moved through the door. As he reached the doorway, he realized why they had hesitated. The walls were covered in blood spatter. It looked as though the entire family had been massacred in the living room.

Casey shuddered. What the hell kind of person does this? He asked himself, trying to keep the bile from rising in his throat. Two of the other men moved from the living room to the kitchen.

Neither man actually walked into the kitchen. Both of them turned and ran from the house with their hands held over their mouths. As Casey watched them go, he followed one of the more senior officers into the kitchen. He stood frozen in shock at the scene and it took seconds for the bile in his throat to reach his mouth, and he too followed the two other men out to the front of the house.

"What the fuck is that!? This is completely inhuman. There is no way that someone could have done that." One of the men was murmuring to the other, talking non stop.

As Casey composed himself to return into the house, he quickly grabbed his gun and made his way, this time, up the stairs. He wasn't quite sure if he could handle a repeat of the kitchen scene. As he made his way up to the landing, he heard a floorboard creak from across the hall.

Shifting his weight, he held the gun trained in the general direction of the sound. As he moved slowly, trying to stay near the wall to keep the floorboards from creaking, he heard a small whimpering noise in the room to his right.

Turning into the room, he gave it a once over and noticed that the floor was covered with bloodstains, both old and new. "What the hell." He whispered himself and heard the sound again. It came from the closet.

Casey shuffled his way to the closet door, gun at the ready, and he yanked it open. On the floor, curled up in the fetal position, was a boy. It was a very young boy, no older than five, and he was covered in blood.

"Shit!" He cursed as the boy looked up at him with a fearful expression, his ice blue eyes showing pure fear. He grabbed his radio and called the other men. "I've got a kid up here! He looks to be about four or five. I might need some medics, he's covered in blood."

He received a strange message from his senior officer. "Casey, can you bring the kid down? We got a live one down here in the kitchen; he's screaming something about Satan's Beast. Medics are on their way."

Casey looked down at the kid again before tossing an 'affirmative' to his superior. He knelt down towards the child and tried to coax him out of the closet.

"Hey, kid, are you hurt anywhere? Do you need a doctor, or…" He wasn't too good at talking to small children. The boy shook his head, his hair wasn't long, but it fell to about his ears, as he shook, small droplets of blood fell from them.

"Jesus, you're completely drenched in blood." He sighed. "Can you tell me where all this blood came from? Do you know whose blood this is?" He asked slowly and cautiously. The boy nodded and his eyes became angry.

"It's Mama and Papa's blood." The boy smiled, it was a vicious smile and caused Casey to flinch slightly. "They can't hurt me anymore. Dog promised. He promised they wouldn't hurt me anymore." Tears began to run down the boy's face.

"Jesus, you did this? You hurt those people downstairs?" Casey felt torn. He wasn't sure what to do about this odd turn of events. "Come on kid. We're gonna go down there and we're gonna take care of you. I promise no one is going to hurt you anymore."

He picked the boy up, not even caring that the blood was soaking into his clothes. He made his way down the stairs carrying the boy against his chest. Several men walked past him and nodded to him. As he reached the kitchen he could hear moaning.

The superior officer turned as he entered and put the boy down to stand beside him. Out of basic instinct, Casey grabbed the boy's hand and held him close to his side. The superior looked at him and the kid. There was a man lying on the floor, his intestines were spilled out, he was just barely trying to hold them in his stomach but it wasn't really working out.

Without warning the man that was just barely alive spotted the boy and he began to scream. "You! You freak! Get that spawn of Satan AWAY! He'll kill us all!! KILL HIM! Kill him NOW!" Both Casey and his superior began to freak out at the sudden screaming and accusations. "You little Bastard! You did this to me! You did this to US!! How dare you!"

Casey pulled the boy closer to him as he saw the kid smirking at the man. Casey also noticed that the wound on the man's stomach was gushing out blood faster than it had been when he entered. As the paramedics ran in, he could tell that there was no way this man was going to survive. He was already dead.

"Sir, what about the boy?" Casey tentatively asked his commanding officer what they were supposed to do with the kid. For all evidence pointed to the boy being the sick murderer that killed everyone in the house.

The total murders added up to seven. There were three bodies lying in the kitchen, the mother and father, along with another male. Two men were killed upstairs in one of the bedrooms, and another man and woman were killed in another bedroom.

"We don't have any choice. We have to present all this information to the general. From my past experiences, I can almost promise you that this boy will be sent to an underground prison facility. He's a special case; we don't know why any of this happened." The officer spoke firmly and looked around him at the carnage.

The two men moved outside as the cleanup crew came. Casey still held the boy close to him. His superior looked at the two of them.

"Well, Casey. Congratulations, it seems as though you've managed to land your first asset." The older man spoke with a hint of amusement. Casey looked down at the boy.

"I don't understand, what do you mean my first asset?" He didn't know what the man was talking about, but he pointed at the boy.

"I'm placing you in charge of that boy. Until the higher-ups can figure what happened here and a justified sentence for the boy, you are going to be his handler for now." The man clapped his hand down on Casey's shoulder.

"Wait!" Casey raised his voice in panic for a moment. "Babysitting was never in the NSA description. This isn't my job." He felt that he would have some serious issues taking care of a child, even if he was locked in a cell most of the time.

"It's not babysitting. Your job entitles you to become a handler for an asset. When you are someone's handler, you protect them and watch their back. There is absolutely no reason for you to disregard this aspect of your job."

The man spoke with finality in his voice. Casey just averted his eyes and grunted a noise that said he understood what was being asked of him. The officer left and almost immediately after two paramedics ran over to Casey and began to ask about the boy and his health.

As Casey watched the medics look over the boy, he saw the first rays of sunlight rising from the east. Casey thought on what he was being asked to do. Taking care of a child, this can only end in tragedy.

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In all honesty, I really just wanted to upload something that I didn't care about anymore... [which is sad]. My MGS fic is coming along okay, and I've had some of this story written out for a while, and now I am finally uploading it. I hope it's okay. Please read and review. If you hate it whatevs, I don't care to hear about how much you hate it. Flames are useless, constructive criticism however is appreciated.

So read, enjoy, review, no flames please, and good day, or night to you all.