On a Caribbean dive vacation, five friends discover a centuries old shipwreck – and a karmic debt past due. 

Wall Eddington has always done the correct thing. It’s part of being British, part of family tradition. Yet somehow someone drowned. Now, half a world away, he’s diving off an old sailboat with four American friends. As a vacation it’s a bit primitive, but just what his soul craves.

Until they find a shipwreck.

Untouched and impossibly preserved, the thing bewitches with promises of gold. The rush to claim it bogs down with odd accidents and petty arguments – and Wall is not the only one with dark dreams of pain and torture. Dreams of a captain called Sadico.

In fleeing his personal demon, Wall has run straight into its lair.