Garry Kilworth 
In the Hollow of the Deep-Sea Wave [EPUB ebook] 

To escape his life in England, John Trencher volunteers to teach schoolchildren on a tropical island. But paradise has its darker, less innocent side, and a web of violence, taboo and sexuality soon begins to wind itself around him. In the Hollow of the Deep-Sea Wave contains the compelling and erotic title tale, and seven short stories on similar themes.