Sidonie & Sinclair Boudreau were the offspring of a witch and a shifter. Such pairings usually resulted in death. Sid & Sin had not only survived, but thrived, and managed to sidestep the family legacy of supernatural policing. The disappearance of their parents changed everything. A cryptic message, an ancient prophecy, and a mystery to uncover in order to bring their parents home puts the twins in the crosshairs of an enemy they didn't know existed.