Ivan Isaacs, a former priest turned undead avenger, walks a bloody path of revenge. But even as he closes in on Achmode, the beast-angel, Ivan too is being hunted. Coburn, a tough-as-rawhide Federal Marshal, seeks answers about the mysterious plague that has been ravishing the frontier, and Ivan is the only one who knows the truth. Two men bound by fate, driven by necessity—at long last their paths will cross.