When Cassie discovers a potential cure for slashers, she accidentally kickstarts a chain of events that will lead to the ultimate betrayal at the hands of a man she thought she could trust! Giant monsters, Vlad's man-eating family, the secret life of Cat Curio, and the final showdown fans have waited years to see! This Hack/Slash Deluxe Edition collects Mercy Sparks: A Slice of Hell and issues #12-25 of the ongoing Image Comics series.