If Paco and Molly LeSoto captivated you in Locks and Cream Cheese, Hot Grudge Sunday, and Boston Scream Pie, you’re sure to love The Moaning Lisa—their fourth murder mystery with a smidgen of humor. Now in their eighties, Paco and Molly have moved into Gilded Gates, an assisted living community in Maryland. They expect their golden years to be blissful. They are dead wrong. Some residents are missing and no one knows what has happened to them. One suspicious resident is a sleepwalker and claims to have heard mysterious moaning during his night walks, but for the life of him he can’t figure out where the anguished sounds are coming from. “Inspector Paco” has retired as head of the Black Rain Corners police force. But many residents of Gilded Gates fear they might be next on the list of the missing. They beg Paco to investigate. Naturally, Molly also pokes her keen nose and shrewd insights into the baffling disappearances.