P. C. Doherty's medieval mysteries are known for their gripping suspense, accuracy, and appealing characters. They have delighted readers with a blend of sleuthing, adventure, and vividly conveyed atmosphere - all wrapped around a mystery from the Middle Ages. Murder Wears a Cowl, the sixth mystery featuring Hugh Corbett, a spy for Edward I, concerns a violent serial killer lurking in London, slitting the throats of prostitutes. When Lady Somerville, one of the Sisters of St. Martha, is murdered in the same barbaric fashion, followed by the suspicious death of Father Benedict, Edward I again calls on his trusted clerk, Hugh Corbett, to track the killer.