A Pig of Cold Poison

Gil Cunningham is the Archbishop's questioner--his investigator. Nanty and Danny were rivals for the affection of Agnes, the apothecary's daughter. Danny dies, apparently of poisoning, after drinking from his friend's flask. But what was the poison? Is Nanty guilty? Then more murders ensue, and Gil's wife, Alys, joins the investigation.

From the Hardcover edition.