"On its way to the Galp̀agos Islands, a light aircraft crashes into the sea. Zoologist Daniel Kennedy is confronted with a stark Darwinian choice. Should he save himself, or Nancy, the woman he loves? But how can one moment of betrayal ever be forgiven? And after he escapes the plane and swims for help, who is the elusive figure who guides him away from certain death? Back in London, Daniel thinks he finds the answer; it is connected with his great...