Jo is on Santorini to marry Michael when she realises that he is only after her inheritance. She flees to Crete with the help of a secret voice in her mind, which leads her to Chania and Dimitri, a new friend. He hides her in his village high in the mountains. Alex, a newspaper reporter, insists on going with her, although she doesn't know why until later.

Michael follows them into the mountains but is defeated after a series of adventures involving a ruined monastery, an explosives cave, and Jo's growing love for Alex.