An ancient and mysterious book leads Crispin Guest into a deadly maze in this latest medieval noir mystery. 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...