Horror devastates the DC Universe, and in this volume, Harley Quinn, Poison ivy, Punchline, and Zatanna all respond to the nightmare world of Knight Terrors in their own unique way!

In Knight Terrors, DC's heroes are taken past the land of the living, beyond the land of the dead, and directly to a new villain called Insomnia...who uses his powers to engulf every single hero and villain in their own dark and twisted nightmares.

In this companion collection, see how Insomnia's Nightmare Wave affects four of DC's most popular characters: Harley Quinn, Poison Ivy, Punchline, and Zatanna!