"The Darkness Has Teeth... And it Hungers. Beyond the Horizon, dark forces claw at the edges of sanity, battering at the fabric of reality, seeking final night: Nephandi, the Corrupters -- Marauders the Foot-Soldiers of Chaos -- Demons, the Renders of Souls-Paradox Spirits, the Mage's Bane -- Umbrood, the Living Mysteries. What are they? Why are they? Can we stand against them at all? And what if we cannot? The Book of Madness is a bestiary for Mage: The Ascension, exploring the darker reaches of magick's touch. It presents the forces of Chaos itself, for players to fight and Storytellers to champion".