I stood still as the things rolled around the floor. Something green stopped right between my legs. I searched out my wand and lighted it to see what it was. I bent forward and took it from the ground. It was like a metal box, but you could see through it. Suddenly a bright light appeared in the middle of it. I stared at it deeply. My hand started to shake quietly and at the next moment I dropped it and stepped away from it. It had gave me like an electrical shock, but it was different. It was as if it had bit me somehow. I pointed my lighted wand at it and looked it some more. My other hand hidden behind my back