New York, Macmillan, 1966. Dr. Frost had planned a quiet vacation visiting their daughter and son-in-law in the northwest of England. But when two locals disappear, questions arise: are they still on the local nature reserve? Are they even still alive? His son-in-law being a suspect causes the doctor to get involved in the case. Binding just a touch loose. DJ browned and with slight wear. $13.50.