From publisher blurb:
Explore the world of wights in this new supplement.
Discover the horror of the wight along with three of its variations from the harbinger wight, the wild wight and the tomb wight.
Also included are 10 new heroic abilities, 15 new spells (5 common, 5 divine and 5 sorcery) and 5 new special magic items that will bring the horror of the wights to your games.
Also included are stats for the wight god, the Wight Lord, if you are brave enough to challenge a god.