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 and the Knights of the Round Table - and he wants Crispin to help him find it. Travelling to Tintagel Castle in Cornwall with Carantok and Jack, Crispin is soon reunited with an old flame as he attempts to locate the legendary sword. But does Excalibur really exist, or is he on an impossible quest? When a body is discovered, Crispin's search for treasure suddenly turns into a hunt for a dangerous killer."This latest in the always enjoyable, crisply written series delivers an agreeable mix of adventure and atmosphere" Booklist "Grim, gritty, and utterly enthralling . pulls the reader deep into the dark underbelly of the Middle Ages" Booklist on Traitor's Codex "Lively . Brisk prose and well-drawn characters propel this nimble excursion into religious thriller territory" Publishers Weekly on Traitor's Codex.