The Puzzle Files of Larry Logic by Dan Katz

Dial L for Logic Film noir meets small-town life in this unique, interconnected book of puzzles, starring Larry Logic, Enigmaville's most prone-to-dramatic-monologues cop. Every group of puzzles tells a mini-story of a new case, in which all the answers combine into one final whodunit. Each chapter presents new styles of puzzles and new challenges, leading to a dramatic conclusion tracking down the criminal mastermind behind it all.