Paranormal novelist Gideon Harlax is drawn into a battle between the forces of good, represented by alien angel Helith, and the forces of evil, represented by Helith's evil brother Asrael. Ranging from Oxford to Denmark, a North Sea ferry to an alien planet, Harlax unwittingly becomes part of an ancient plot that may result in the destruction of Earth...

A war veteran tries to investigate the murder of his son who was working as a Russian translator for the British intelligence service during the Cold War. He meets a web of deception and paranoia that seems impenetrable...