Mary Stewart: The Moon-Spinners [1991] paperback

Nicola Ferris, on leave from her job as a secretary in Athens, has been looking forward to a quiet week's holiday in Crete, enjoying the wild flowers and the company of her cousin Frances. But before she even reaches her destination Nicola stumbles on evidence of a murderous crime involving a young Englishman and a group of people tied together by blood and the bonds of greed. For the first time in her life Nicola meets a man and a situation she cannot deal with ...