Matt Wagner's masterpiece heats up in the third of four omnibus collections reprinting the complete Grendel saga! No longer content to inhabit one host at a time, the Grendel entity goes viral, in a new phase of Wagner's epic spanning centuries and culminating with the rise of a new kind of host - the Grendel-Khan! This volume collects the never-before-reprinted "Incubation Years" tales from Grendel #20-22 and the mammoth "God and the Devil" and "Devil's Reign" storylines, featuring art by Tim Sale and John K. Snyder and collected in order for the first time.