Mystery and Adventure travel the same path. Within every mystery is an adventure, be it a struggle for survival, network of suspense, or matching of wits. A mystery is a secret jigsaw puzzle. Its popularity lies in the author's skillful engagement of the reader in putting together the pieces by using such elements as clues, foreshadowing, and cliffhangers, with a likable protagonist as the problem solver. This article provides descriptions of twenty-six books in this category, as well as a list of additional recommended titles.