Grendel: Devil's Odyssey #5 — Matt Wagner

Several years into their mission to find a new home for humanity, Grendel Prime and Sigma Seven finally discover a planet with signs of advanced technology. Unfortunately, this world is a ghost planet—the massive husk of a civilization long since decayed. Only the extinct race's machinery has endured and continues to function without purpose. Can Prime navigate the perils of this mechanized hellscape . . . and survive?