Silver sat motionless, staring down at her feet and hands. Her bed and the walls of her room displayed her latest fit of rage. The room itself was small, containing a simple bed and a desk. The bed was just a mattress on a metal frame. Silver was not allowed blankets because most often or not, she would tear them to shreds. The desk in her room were piled with books. History, math, the arts, anything to teach her about the modern world outside. The walls her a metallic grey of reinforced metal, covered in claw and bite marks. There were two doors in her prison. One led to a tiny bathroom, containing the necessities. The other led outside, but it was locked and reinforced. Silver looked over at the door and the black windows around it. She knew they watched her. People really only come in to feed Silver, or experiment on her. Recently they had used some crosses and silver to see their affect on her. Pointless. They knew already what it did, but they just liked to do it. Silver gently tugged on the collar that controlled her. It was loose enough to allow her to manifest into her other form, but not too much to let it slip over her head. She also couldn't break, no matter how much she tried. And she did try. A lot. 
Recently, Silver has been trying the tactic of trying to control herself. Read the books they give her and to become 'civilized'. She did not know if she was fooling them, though. She could barely control herself at times. Silver whimpered. She wanted to hunt and run and kill.