Claire DeWitt and the City of the Dead (Claire DeWitt Mysteries, #1)

This knock-out start to a bracingly original new series features Claire DeWitt, the world’s greatest PI—at least, that's what she calls herself. A one-time teen detective in Brooklyn, she is a follower of the esoteric French detective Jacques Silette, whose mysterious handbook Détection inspired Claire’s unusual practices. Claire also has deep roots in New Orleans, where she was mentored by Silette’s student the brilliant Constance Darling—until Darling was murdered. When a respected DA goes missing she returns to the hurricane-ravaged city to find out why.