"The outstanding new Sam and Remi Fargo adventure from the #1 New York Times-bestselling author. An 800-year-old treasure ... an ancient cypher wheel ... a brutal murder ... and a man who will stop at nothing to claim what he considers rightfully his. Husband-and-wife treasure-hunting team Sam and Remi Fargo have gone on impossible missions before and faced many perils, but never have they faced an adversary as determined as the one before them now....

The old salt farmers have always said that the violet scent of the Fleur de Sel at harvest time on the salt marshes of the Guérande Peninsula has been known to cause hallucinations. Commissaire Dupin also starts to believe this when he's attacked out of the blue in the salt works.

On the werewolf reservation of Ripple Creek, a killer is on the loose. Three women are dead, their bodies mutilated and faces slashed. Duncan Sinclair has been called back home to find the killer, and he wants nothing more than to complete his task and get out of town. Then he is approached by a wolf who obviously has more than seduction on her mind, and he finds himself ensnared in a growing web of desire and deceit.