Dungeons & Dragons Book of Vile Darkness (3.0)
This sourcebook for the Dungeons & Dragons game is intended for mature audiences and provides a Dungeon Master with unflinching access to subject matter that will broaden any campaign. Included in a detailed look at the nature of evil and the complex challenge of confronting the many dilemmas found within its deepest shadows. Along with wicked spells, wondrous items, and artifacts, Book of Vile Darkness also provides descriptions and statistics for a host of abominable monsters, archdevils, and demon princes to pit againt the noblest of heroes.
To use this supplement, a Dungeon Master also needs the Player's Handbook, the Dungeon Master's Guide, and the Monster Manual.