Dark Horrors and Unspeakable Evils

In this Mercer tale, a ravenous monster is on the loose, terrorizing the city. A young nun seeks out Mercer's help to take down the horrible abomination; no one else can escort the creature back to hell. It may take a monster to get rid of a monster, but Mercer has never dealt with anything like this before. He may be in over his head.
This volume of Great Tomes will be out next month.