Union with demons reveals the true meaning of forbidden texts, and the lore of the Abyss contains the secrets of devastating magic. Every sorcerer dreams of one day matching the strength of the demon they serve, and so they spend a lot of time training to perfect their deadly talents. The most useful of the cultists are given the Book of Darkness, which whispers dark thoughts from hell directly into their minds. It infuses sorcerers with power, reshaping their bodies but destroying their souls.