1321. Simon and Baldwin are rewarded for their services in a previous investigation by a summons to Exeter over the Christmas period to receive prestigious gloves of honour from the Boy-Bishop.

However, they learn that Ralph, the glovemaker, has been robbed and murdered. Soon after, a Secondary named Peter is poisoned at the cathedral. Suspicion falls on him, with many assuming that he killed Ralph and then committed suicide, but Simon and Baldwin are unconvinced.

Their investigation unearths deception by the highest ranks of Exeter's leading citizens, and a ruthless murderer, poised to strike again...