Incubus - Larry Yoakum - Bog

Lenny Lowell hasn't experienced sleep paralysis in fifteen years. Unfortunately for him, it has returned and it is as scary as he remembered. His own mother went through the same thing when she was young. Now, with his mother in a sudden coma and his twin sister dead under mysterious circumstances, Lenny discovers that sometimes sleep paralysis is caused by something dark, sinister, and completely without human compassion.