From publisher blurb:
The powers of the Gods are mighty and mysterious, and so should the powers of their clerics be!
Want to bring back some of that old-time religion to your Old School Roleplaying game?
You will find 15 Divinities and 4 Demon Lords for Players, Referees, & Fans of Mythology inside
Compatible with the various Old School Editions and their ‘Retro-clones’, especially Labyrinth Lord!