The boy was going mad, at the time he felt like if he didn’t do it his sister would. She was competition, he had to kill her. There was something that wasn’t right. He had hidden her in the room. But it was just a matter of time before someone found out. It would probably be his mother, the whole town knew that his sister had disappeared but no one knew where, when the body was right next to them, stone cold.
Knowing that someone would find it sooner or later, he had to move it. He was thinking that he could move it overnight and throw it into the river nearby, but it was a long walk away and to do it unseen would be difficult. Even if someone saw just the boy they would get him back to his house and find the body the next day.
That night he snuck downstairs, his mother was on the sofa watching the television. The stairs were behind the sofa so he had to be quiet or his mother would see him getting out the body and he would probably be sent off to some sort of mental care place where he would be locked up in a cell for the rest of his life.
He snuck down and silently opened the door, he tried to lift the body but for a boy of his size, it was very hard for him. He finally managed to lug the poor girl over his shoulder and carry her to the front door and place her next to it. Once he had opened the door and he knew that he was far enough that his mother wouldn’t hear him he ran and ran and ran until he got to the river. He tossed her into the river as fast as he could. Once she was out of sight he ran back home. He closed the door and snuck back into bed. But he couldn't sleep, knowing what he did, he just thought at the moment at the time. The adrenaline, the rush he got from it. He just couldn't stop, again and again, again. Over and over he hit her around the head with his dad's baseball bat, not thinking about what could happen next.
