John Carpenter's Tales of Science Fiction: The Standoff (John Carpenter's Tales of Science Fiction: The Standoff #4)

The death clock is ticking at Tattersall Prison. Trapped guards. Prisoners with hostages. And alien invaders who want to possess them all. Visitors who like the darkness and use human beings as a chrysalis for their new, Earth-friendly, forms. Tattersall must be contained, and time is running out.