It’s summer and the annual tennis tournament between Cavendish and Charnley is under way; but a sudden spate of jewel thefts prompts James to put his sleuthing hat on. His investigation suggests that the criminals are using an ancient smuggling network. Can he convince his good friend, DCI George Lane, of his suspicions? Has the smuggling network reopened? Are the two cyclists really tourists? Is the murder of the tennis umpire connected? Could a long-term resident really be a criminal mastermind? James desperately struggles for answers as he explores hidden tunnels, studies old maps and examines the motives of his fellow villagers.