No longer content to inhabit one host at a time, the Grendel entity goes viral, in this new phase of Wagner's epic, which spans centuries and culminates in the rise of a new kind of host: the Grendel-Khan! This volume collects the "Incubation Years" from the original Grendel #20-#22 with the mammoth God and the Devil and Devil's Reign story lines, featuring art by Tim Sale and John K. Snyder III. Comics that inspired the live-action Netflix show! 500+ masterful pages of sci-fi action and innovative storytelling!