Sir Gordon Thurston is the incoming Head of MI6. He has been briefed with much sensitive information, such as current and future missions and the department's foreign policy. En route to a meeting in Paris he is abducted, and an identical substitute put in his place. The deception is soon recognised, but anxiety grows when his whereabouts cannot be traced. The task of finding Sir Gordon falls to Sector Three, an ultra-secret intelligence splinter group, and an agent with the code name Robert Lane sets out on a mission which takes him to Portugal, Italy and a remote region of Russia. The group...

Ray Caldwell, an agent of the ultra-secret government department known as Sector Three, leaves London suddenly, despite an impending mission. This apparent defection causes alarm within The Sector, because of the knowledge that Caldwell carries with him. When he is traced to the Caribbean island of St Lucia, Robert Lane is sent to bring him back, or to silence him if he resists. Lane is reluctant to admit that Caldwell would turn traitor, and when murder blocks his search at every turn he suspects there is another organisation involved. Or is Caldwell himself covering his tracks before...

A terminally-ill man meets a woman on the ski slopes of the French Alps, where she rescues him in impossible circumstances. After waking in a military hospital, an accident victim no longer needs food and is forbidden to look into a mirror. What is the meaning of the ghostly parade in the seventeenth-century manor Gryphon's Court? A plague of vampires descends on a quiet country village. A children's entertainer tells a private enquiry agent an incredible story.