It's the battle of the century when Minami, the Sudoku Lady, shows up in Bakerhaven, Connecticut, to meet Cora Felton, the Puzzle Lady, whose sudoku books have just edged Minami's off of the Japanese bestseller list. Before the rivals have a chance to square off, a killer strikes, and a sudoku puzzle is found at the scene of the murder. Now it's a fight to the finish to see who can unmask the killer. Cora is eager to undo her Japanese counterpart---at...