Mad angels and demon princes were once the least of Dustin Graves's problems. Now catastrophic events are warping reality: rains of blood, black lightning… and an entire town wiped clean from the map, its people simply vanished.

All signs point to the awakening of the cosmic horrors known only as the Eldest. Dustin's best bet lies in finding a supernatural patron at the Twilight Convocation, a grand meeting of the entities of night and shadow. The only question is… who gets his soul?