Good crime fiction is like solving a puzzle. As Poirot would say, it stimulates the little grey cells. In The Long Call, Ann Cleeves  introduces detective Matthew Venn, who returns to the evangelical community he grew up in for his father’s funeral, only to be drawn in by the discovery of a murder victim on a nearby beach. In Robert B. Parker’s The Bitterest Pill by Reed Farrel Coleman, the opioid crisis comes to Paradise, where the overdose of a popular student has Chief Jesse Stone probing the underside of his scenic north shore beat. In Land of Wolves by Craig Johnson, wolves sheep and a fatal hanging pose a puzzle for Walt Longmire.