DUNGEONS & DRAGONS OUT OF THE ABYSS HCDare players to descend into the Underdark and stop the madness! For use with the fifth edition Player's Handbook, Monster Manual, and Dungeon Master's Guide, this book is conceptually similar to the adventure, Elemental Evil Princes of the Apocalypse, providing the adventure and support rules information needed by Dungeon Masters for the Rage of Demons storyline. Publisher: Wizards of the Coast