13th Age - Book of the Underworld

The Underworld is calling! Can you resist its dark seductions? Deep within the 13th Age lies adventure and treasure, as well as madness and death. But what is reward without risk? The Book of the Underworld uncovers the secrets of this vast and mysterious realm, including: the Underworld: the Underland, the kingdom of the Hollow Realms and what lies in the depths, the mighty dwarven city of Forge-the gathering place for the inevitable war, the threats of Malice, Drowfort, and the four kingdoms of the Mechanical Sun, the Forgotten Gods, the magical gnome academy, monsters, magical treasure, and more! You'll also find rules for traveling in the Underworld and advice for GMs who want to create adventures and campaigns in the Underworld.