Bestiary of Ruination is for use with Ruination Pilgrimage. It contains stats and descriptions of animals, human adversaries, minor demons, Horsemen of Vice/Betrayers, ghosts, and possessed corporeal undead. 

Entries generally have short description and a stat block:

• C = Combat
• Type of damage X N DMG
• AP = Armor Protection
• I = Instinct
• W = Wounds and (Health)
• ES = Exorcism Successes

Many of the demon entries have tables to add variety and flavor to the main adversary in the world of Ruination Pilgrimage.