In the middle ages a gallowglass was the personal guard of the Celtic chief: the food taster, the right hand man, the expendable one who would die for his leader. Ruth Rendell, writing as Barbara Vine for the fourth time, here presents a tale of kidnapping, obsession, and loyalty told by two men thrust into the part of modern gallowglass. The Princess, a former fashion model with a penchant for marrying older, rich men, is the target once again of the man who had been her jailer five years.