Since losing his knighthood, Crispin Guest has crafted a new reputation for himself. From the shadowy corners of London to the halls of the royal court he is known as the Tracker, an investigator for hire who can find anyone or anything. But when the Archbishop of Canterbury hires him to expose the culprit threatening the sacred relics of a holy martyr, Crispin finds himself a stranger in an unfamiliar land. Within a city of pilgrims and priests, he unexpectedly encounters his former friend Geoffrey Chaucer, poet, rabble-rouser, and liege to Crispin's former master. Chaucer and his group of fellow pilgrims all have tales to tell...and secrets to hide. And when murder befalls the cathedral, Crispin is enlisted in a second case. Among hallowed tombs of soldiers and saints, in a world of ancient secrets and undying vendettas, Crispin must identify the murderous heretic among holy men if he has any hope of returning home.