Hounded (Kevin Hearne)

I enjoyed this contemporary fantasy story, with an ancient druid living in Arizona as a 20-something dealer in arcane books and tea, fending off the attention of Celtic gods with the help of other gods, witches, werewolves, and his own earth magic. The hip, pop-culture attitude contrasts nicely with the old legends and dire swords. This is the beginning of a series that I expect to follow, at least for a while.