$10,000 in Small, Unmarked Puzzles (Puzzle Lady: Thorndike Press Large Print Mystery)

When attorney Becky Baldwin hires Cora Felton to make a blackmail payment drop, it couldn't go worse: she stumbles over a corpse and a puzzle, and someone steals the money. Becky won't name her client, but the most likely suspect is Cora's least favoriteex-husband, Melvin, who claims he's being framed by a psychopath. Cora is in a no-win situation. Solving the murder will either put Melvin's neck in a noose, or incur the wrath of a cold-blooded killer.