Kaibab Unbound

Two weeks before the events of Hounded, the druid Atticus O'Sullivan and his Irish wolfhound Oberon are hunting in the Kaibab forest north of the Grand Canyon when an elemental of the forest calls on Atticus for help. A coven of witches is after its power, and Atticus has to stop them. A short prequel story in The Iron Druid Chronicles by Kevin Hearne, first bundled with the ebook of Hounded and later collected in Two Tales of the Iron Druid Chronicles.