An old lover, technology knockoffs, a missing self-defense instructor, and a dead convention exhibitor. They must have something in common, but what? When DeeDee, Jake, Al, and Cassie, from the Northwest Cozy Mystery Series, meet up with Brigid and Sheriff Davis, from the Cottonwood Springs Cozy Mystery Series, at a law enforcement convention in Denver, it's almost a given there will be a mystery to solve. Or maybe two. So much for getaway vacations. So just what happened to Marie, a self-defense expert who specializes in instructing women on how to protect themselves? Now she's missing. And it would be nice to know what happened to Max, the man at the convention with the latest developments in law enforcement technology. Too bad he's dead, but some people think he deserved it. The characters from two cozy mystery series work together to find the answers, but sometimes a dog's senses are a little more fine-tuned when it comes to solving mysteries. Camilla the coonhound's certainly were! New friends, more mysteries, and a budding romance. Vacations are always interesting, but sometimes they certainly don't go as planned! This is the 18th book in the Northwest Cozy Mystery Series by a USA Today Bestselling Author.