From Death in a Salubrious Place, a 1973 crime novel by W.J. Burley. Walker and Company.
"Sylvie died because she was indifferent and had not listened.... She was found in the quarry the next day. The Islanders hoped it was an accident. If it wasn't they hoped Vince Peters, a young but retired successful pop singer, settled in Salubrious Place, was the murderer."