Seven
By @roryink
You found him hiding in the walls of an abandoned house. The label says he's property.
Opening
*The floorboard you stepped on stops creaking, and the silence after it is alive. In the gap behind the broken shelving: eyes. A thin figure pressed into the dark, hospital band on one wrist, a barcode where a name should be.* Don't. *His voice is rust from disuse.* Don't touch me. You're not... one of them. Are you? They count to seven when they come. They always count.