"A quest to find the ancient sword Excalibur quickly turns into a hunt for a determined killer for Crispin Guest. London, 1396. A trip to the swordsmith shop for Crispin Guest, Tracker of London, and his apprentice Jack Tucker takes an unexpected turn when Crispin crosses paths with Carantok Teague, a Cornish treasure hunter. Carantok has a map he is convinced will lead him to the sword of Excalibur - a magnificent relic dating back to King Arthur...

Crispin Guest, Tracker of London, is enjoying his ale in the Boar's Tusk tavern - until a stranger leaves a mysterious wrapped bundle on his table, telling him, "You'll know what to do." Inside is an ancient leather-bound book written in an unrecognizable language. Accompanied by his apprentice, Jack Tucker, Crispin takes the unknown codex to a hidden rabbi, where they make a shocking discovery: it is the Gospel of Judas from the Holy Land, and its...

"1399, London. A drink at the Boar's Tusk takes an unexpected turn for Crispin Guest, Tracker of London, and his apprentice, Jack Tucker, when a messenger claims the prioress at St. Frideswide wants to hire him to investigate murders at the priory. Two of Prioress Drueta's nuns have been killed in a way that signifies two of the Seven Deadly Sins, and she's at her wits end. Meanwhile, trouble is brewing outside of London when the exiled Henry Bolingbroke,...

1390. Hailes Abbey, Gloucestershire, England. Two monks lie murdered, their Holy Blood relic stolen: a relic that is said to run liquid for the sinless and remain stubbornly dry for the sinner. Unwilling to become involved in a bitter dispute between a country monastery and Westminster Abbey, the disgraced former knight Crispin Guest attempts to return the relic to Hailes where it belongs, but somehow it keeps returning to his hands no matter what....

Crispin Guest awakens in a strange bed after a night of passion and finds a woman dead, murdered. Drunk, Crispin scarcely remembers the night before. Did he kill her? But when other young women turn up dead under similar circumstances, he knows there is a deadly stalker loose in London. Could it have to do with the mysterious Tears of the Virgin Mary kept under lock and key by a close-lipped widow, a relic that a rival family would kill to get their...