People used to come to the small Greek island of Palassos for the historic ruins.

Now they come to take drugs and party all night. But the horrific ritual murder of a boy in the grounds of an old monastery brings back memories of two similar deaths in the mid-1970s, and of a mysterious cult who once dwelt in the island's interior, memories the island has tried hard to forget.

As Nikos, the police chief who has been persuaded back to his home island for the final years of his career, begins his investigation, two Brits arrive on the island:

The bestselling crime writer Kitty Carson, on a break from the pressures of work and her strained marriage, and Jason, an aspiring writer with a secret of his own.

When a second body is discovered - further endangering the island's lucrative tourist trade - these three characters are thrown together, as the gruesome secrets of the past begin to emerge.

Brilliantly paced, and featuring a memorable cast of characters, The Black Monastery is a blistering portrait of paradise gone wrong.