Waking Brigid. Gus and Ghost

Detective Gus Collier and his partner Jack Barnes solve crimes in Portland, Oregon, but that's just the surface of Gus's responsibilities. He's also the seventh child of a seventh child, giving him paranormal abilities and a second partner, Sarah Allen . who just happens to be a ghost. A conspiracy of witches plans to perform a ritual to summon an ancient goddess during the spring festival of Imbolc.
Why? To rule the world, of course! Fortunately, other covens disagree with their plot. Will Gus and Ghost discover a way to help the good witches thwart the ritual and stop a world-wide disaster?A vividly realized urban fantasy, Waking Brigid brings back an old friend and introduces Gus and friends to many more!