A thoroughly enjoyable book, I was struck by the fascinating premise of a normal PI in a world of people with super powers. It reminded me of a couple of favorite series, Jim Butcher's Dresden Files and George RR Martin's Wild Card universe.
This story seems to meld the elements of both into a new, and very entertaining storyline. I could see this becoming a series, with the protagonist working his way through new mysteries and fleshing out the world around him. The possibilities are endless!