From publisher blurb: Haunting new creatures have been unearthed in this tome of nightmares! This sourcebook contains over 150 pages of new creatures with balanced statblocks and art, ready to invade your haunting campaigns and oneshot adventures. The main aim of this product is to provide more interesting options for undead, beasts, and monstrosities then those presented in the Monster Manual. It also contains 10 battle maps (DM & Player versions) that can be used as an additional resource.