The ninth and final book in the Iron Druid Chronicles, described by SFF World as 'Neil Gaiman's American Gods meets Jim Butcher's Harry Dresden' New York Times bestselling author Kevin Hearne returns with the finale to his wildly popular action-adventure series, The Iron Druid Chronicles. Two-thousand-year-old Druid Atticus O'Sullivan travels to Asgard and faces off against the Norse gods to try and prevent Ragnarok in the final battle for the fate of mankind.