No Vacation from Murder — Elizabeth Lemarchand

IT BEGAN AS A QUIET HOLIDAY. IT ENDED IN MURDER.

Conscientious young Wendy Shaw would never have gone off and left the baby she was minding. Yet the baby is found alone and Wendy has disappeared. Detective Inspector Pollard and Inspector Toye have a wide choice of suspects -- nearly a hundred vacationing strangers have invaded the tiny village, not one with any connection to the friendless girl. But Wendy is dead, and Scotland Yard team must find her killer before there are more deaths.