When her niece goes missing, Sheriff Kate Fox dives into a lethal investigation that unearths long-buried secrets—and a secret society desperate to keep them hidden.... Sheriff Kate Fox is wrangling her personal and professional life into order while still searching for her niece, who slipped her halter and took off almost two years ago. But when her ex-husband's wife, Roxy, drops their infant on Kate's doorstep and disappears with no explanation, Kate's world is turned upside down. Her search for Roxy takes her to a remote cabin in the Wyoming mountains, and Kate discovers a fresh trail for her niece. Her instinct tells her the two women's disappearances are related and may be connected to a mysterious society whose members are playing a dangerous game. As Kate races to save the women, she turns to friends and family to help—but the society's reach stretches far, and its most dangerous members are closer than she thinks....