S&S (d20) - RAVENLOFT: DENIZENS OF DARKNESS (2002)

From the back cover:

Bloodsuckers and Other Beasties

Fiends prowl the oppressed world of Ravenloft, inflicting their whims on a terrorized populace. From the cunning werewolves to terrible artificial constructs to the monstrous lords of the domains, evil dominates the night. In the grand tradition of the Monster Manual and Creature Collection, Denizens of Darkness presents a whole new host of enemies for adventurers in the Ravenloft world to face. Malevolent and malign, these creatures lurk in the darkness, to be challenged by noble heroes fighting to take back a world that should belong to them.