Carrie Gray (Paperback) (ISBN-13: 9780473700461)

A young girl leaves New Zealand for Europe, the big OE. She goes alone, wants do her own thing, unrestricted by others, experience everything. A skilled boaty she wants to crew on a superyacht; she disappears. Her boyfriend, Michael, becomes concerned at the sudden lack of communication and sets off to find her; he disappears.
Michael's father Frank, a retired detective, becomes alarmed and sets off to find them both. He discovers a frightening underworld of drug smuggling, murder, and prostitution, dominated by several powerful families. It's devouvred these two youngsters from far off New Zealand.
A fast moving story of romance, adventure, and danger set in Paris, Athens, and Istanbul, and spills out into the Pacific.