Robert Ludlum

The Matarese Countdown is an espionage thriller novel by Robert Ludlum. It is the sequel to the The Matarese Circle.

Trevayne is Robert Ludlum's fourth novel, published in 1973 under the pseudonym Jonathan Ryder. The novel centers around an independent and headstrong tycoon who reluctantly accepts an appointment from the President of the United States to head a subcommission to investigate malfeasance and rampant corruption …

The Cry of the Halidon is a 1974 suspense novel by Robert Ludlum.