The KenKen Killings

The twelfth, puzzle-packed entry in the Puzzle Lady series, Parnell Hall's The KenKen Killings is sure to please fans, and make some new ones.
The Puzzle Lady just can't stay out of trouble. When the late Chester T. Markowitz, a man she never met, leaves $10,000 to his beloved wife, Cora Felton, the Puzzle Lady can't help cashing the check. Quicker than you can say legal proceedings, Cora's least favorite ex-husband, Melvin, shows up in Bakerhaven with an attorney and a young bimbo, demanding that her alimony be terminated on the grounds she remarried.
When a key witness in the alimony hearing gets murdered, a KenKen puzzle is left at the scene of the crime. Is someone trying to tell Cora something? Before she can find out, she runs into more murders, more puzzles (both KenKen and crossword) and a murder weapon that seems to point to Melvin as the killer! At least it might have, if Cora hadn't suppressed it.
Does the Puzzle Lady still have feelings for the scoundrel she once married? Don't ask. She might kill you!