It's Friday the thirteenth and Detective Inspector Andy Horton's luck is about to run out.His Harley-Davidson is vandalized, a strange symbol etched into the paintwork. Is it some kind of warning?To make matters worse, Horton's nit-picking boss, DCI Lorraine Bliss, has returned early from her secondment to HQ.And a convicted murderer out on licence has gone missing. Luke Felton. Horton recognizes the name from a case he worked as a sergeant.Now a decomposing corpse washes up in Portsmouth harbour. The bloated body is found lying in the thick slimy mud.Before Horton can get a grip on either case, his phone rings. He doesn't recognize the number. A voice on the other end gives him an address: Willow Bank, Shore Road, Portchester.Horton knows it. The house belongs to a woman he'd met the day before. And now she's dead. Her body lies in her windswept garden.Horton's got a lot on his plate. Can he connect the dots before anyone else dies?