Brother Celerity is a monk who gives advice on how to defeat the demons. He is located at the Edgeville Monastery. After completing one or more demon flash mobs, one may talk to him to receive the Malleus daemoniorum, a book giving information on the demons and their abilities. The book can also be wielded as a cosmetic item in the left hand. Celerity is the one who alerted Gideon Bede after the megalomaniac Denath had stolen a book on demonology.