Atticus O'Sullivan, the last of the Druids, finds his peaceful life in Arizona shattered by the arrival of an angry Celtic god who wants Atticus's magical sword, forcing Atticus to call upon some unlikely allies for help.

To defeat Thor, the Norse god of thunder who has killed scores of innocents, Viking vampire Leif Helgarson teams up with Atticus O'Sullivan, the last of the Druids, a werewolf, a sorcerer, and an army of frost giants.

After twelve years of secret training, Atticus O’Sullivan is finally ready to bind his apprentice, Granuaile, to the earth and double the number of Druids in the world. But on the eve of the ritual, the world that thought he was dead abruptly discovers that he’s still alive, and they would much rather he return to the grave.
Having no other choice, Atticus, his trusted Irish wolfhound, Oberon, and Granuaile travel to the base of Mount...

NEW YORK TIMES BESTSELLER • Acclaimed author Kevin Hearne makes his hardcover debut with the new novel in his epic urban fantasy series starring the unforgettable Atticus O’Sullivan.
“[Kevin] Hearne is a terrific storyteller with a great snarky wit. . . . Neil Gaiman’s American Gods meets Jim Butcher’s Harry Dresden.”—SFFWorld
For nearly two thousand years,...

"Kevin Hearne creates the ultimate Atticus O'Sullivan adventure in the grand finale of the New York Times bestselling Iron Druid Chronicles: an epic battle royale against the Norse gods of Asgard. Unchained from fate, the Norse gods Loki and Hel are ready to unleash Ragnarok, a.k.a. the Apocalypse, upon the earth. They've made allies on the darker side of many pantheons, and there's a globe-spanning battle brewing that ancient Druid Atticus O'Sullivan...