Andrew Basnett may be retired from academia, but that doesn't seem to have stopped his former colleagues from dumping problems in his lap. This time around it's the peppery Constance Camm, whose neighbors keep disappearing. Miss Camm and her sister, Mollie, might be tempted to shrug things off, were it not for a frightening letter. "I know where you buried the body," says the letter, but...to which disappeared neighbor does the letter refer? And why...