Tricked (Iron Druid #4) [Hearne, Kevin]

Druid Atticus O'Sullivan hasn't stayed alive for more than two millennia without a fair bit of Celtic cunning. So when vengeful thunder gods come Norse by Southwest looking for payback, Atticus, with a little help from the Navajo trickster god Coyote, lets them think that they've chopped up his body in the Arizona desert. Original.