It's the battle of the century when Minami, the Sudoku Lady, shows up inBakerhaven to meet Cora Felton, the Puzzle Lady, whose sudoku bookshave just edged Minami off of the Japanese bestseller list. Before therivals have a chance to square off, a killer strikes, and a sudokupuzzle is found at the scene of the murder. Now it's a fight to thefinish to see who can unmask the killer. The Puzzle Lady is eager toundo her Japanese counterpart. At least until the poor woman is arrestedfor murder and Cora realizes she's accidentally framed her for thecrime. As if that weren't frustrating enough, the publicity of herarrest drives Minami's sales through the roof! Now it's up to Cora toclear her rival's name, get her off the bestseller list, and trap thereal killer. Only, she better do it fast, before the cops find out whatCora did, and she winds up facing more jail time than Minami.