The Ambler WarningW
The Ambler Warning

The Ambler Warning is a Robert Ludlum spy thriller set in part on Parrish Island, a restricted island off the coast of Virginia. Left as an incomplete manuscript by Ludlum's death in 2001, the author's estate hired an author and an editor to finalize the manuscript for publication in October 2005. Early sales placed it on The New York Times Best Seller List within a month of its release.

The Apocalypse WatchW
The Apocalypse Watch

The Apocalypse Watch (1995) is a novel by Robert Ludlum. A TV movie based on it aired in 1997 which starred Patrick Bergin and Virginia Madsen. This was Ludlum's second novel to focus on a neo-Nazi conspiracy to take over the world, after The Holcroft Covenant (1978).

The Aquitaine ProgressionW
The Aquitaine Progression

The Aquitaine Progression is a novel by Robert Ludlum originally published in 1984.

The Bancroft StrategyW
The Bancroft Strategy

The Bancroft Strategy is a spy novel credited to Robert Ludlum, posthumously published on October 17, 2006.

The Bourne Identity (novel)W
The Bourne Identity (novel)

The Bourne Identity is a 1980 spy fiction thriller by Robert Ludlum that tells the story of Jason Bourne, a man with remarkable survival abilities who has retrograde amnesia, and must seek to discover his true identity. In the process, he must also determine why several shadowy groups, a professional assassin, and the CIA want him dead. It is the first novel of the original Bourne Trilogy, which also includes The Bourne Supremacy and The Bourne Ultimatum.

The Bourne SupremacyW
The Bourne Supremacy

The Bourne Supremacy is the second Jason Bourne novel written by Robert Ludlum, first published in 1986. It is the sequel to Ludlum's bestseller The Bourne Identity (1980) and precedes Ludlum's final Bourne novel, The Bourne Ultimatum (1990).

The Bourne UltimatumW
The Bourne Ultimatum

The Bourne Ultimatum is the third Jason Bourne novel written by Robert Ludlum and a sequel to The Bourne Supremacy (1986). First published in 1990, it was the last Bourne novel to be written by Ludlum himself. Eric Van Lustbader wrote a sequel titled The Bourne Legacy fourteen years later.

The Chancellor ManuscriptW
The Chancellor Manuscript

The Chancellor Manuscript is a 1977 novel, by American writer Robert Ludlum, about the alleged secret files of J. Edgar Hoover and how they disappeared after his death, and how they possibly could be used to force people in high places to do the bidding of those who possessed the secrets contained therein. It also speculated that Hoover himself might have been assassinated because he knew too much about too many of the wrong people.

The Cry of the HalidonW
The Cry of the Halidon

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

The Gemini ContendersW
The Gemini Contenders

The Gemini Contenders is a 1976 novel by Robert Ludlum.

The Holcroft CovenantW
The Holcroft Covenant

The Holcroft Covenant is a 1978 novel by Robert Ludlum. In 1985 it was made into a film of the same name.

The Icarus AgendaW
The Icarus Agenda

The Icarus Agenda is a 1988 thriller novel by bestselling author Robert Ludlum. It is the sequel to The Chancellor Manuscript.

The Janson DirectiveW
The Janson Directive

The Janson Directive is a novel by Robert Ludlum. The posthumous novel was published in 2002, a year after Ludlum's death.

The Matarese CircleW
The Matarese Circle

The Matarese Circle (1979) is a novel by Robert Ludlum.

The Matarese CountdownW
The Matarese Countdown

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

The Matlock PaperW
The Matlock Paper

The Matlock Paper is the third suspense novel by Robert Ludlum, in which a solitary protagonist comes face to face with a massive criminal conspiracy.

The Osterman WeekendW
The Osterman Weekend

The Osterman Weekend is a thriller novel by Robert Ludlum. First published in 1972, it was the author's second book. The novel was the basis for the film of the same title.

The Parsifal MosaicW
The Parsifal Mosaic

The Parsifal Mosaic is a spy fiction novel by Robert Ludlum published in 1982.

The Prometheus DeceptionW
The Prometheus Deception

The Prometheus Deception is a spy fiction thriller novel written in 2000 by Robert Ludlum about an agent in an ultraclandestine agency known only as the Directorate named Nick Bryson, alias Jonas Barett, alias Jonathan Coleridge, alias The Technician, who is thrown into a fight between an organization he knows as Prometheus and his former employers at the Directorate.

The Rhinemann ExchangeW
The Rhinemann Exchange

The Rhinemann Exchange is a novel of suspense by Robert Ludlum, set in the middle of the Second World War.

The Road to GandolfoW
The Road to Gandolfo

The Road to Gandolfo is a story by Michael Shepherd about General MacKenzie Hawkins, a military legend and Army veteran. He defaces an important Chinese memorial as a result of being drugged by a Chinese general and is later kicked out of the Army. Seeking revenge, he plots to kidnap the Pope Francis I and hold him for ransom of $400 million, one dollar for every Catholic in the world.

The Road to OmahaW
The Road to Omaha

The Road to Omaha is a novel by Robert Ludlum published in 1992. It is a sequel to his earlier book The Road to Gandolfo. Both are comedic thrillers concerning Army lawyer Sam Devereaux, who gets caught up in the schemes of General MacKenzie "The Hawk" Hawkins. The Hawk is seeking revenge after being unfairly drummed out of the United States Army at the start of the first book.

The Scarlatti InheritanceW
The Scarlatti Inheritance

The Scarlatti Inheritance is the first of 27 thriller novels written by American author Robert Ludlum.

The Scorpio IllusionW
The Scorpio Illusion

The Scorpio Illusion is a 1993 novel by Robert Ludlum. It is a mix of suspense, drama, action and thriller.

The Sigma ProtocolW
The Sigma Protocol

The Sigma Protocol is the last novel written completely by Robert Ludlum, and was published posthumously. It is the story of the son of a Holocaust survivor who gets entangled in an international conspiracy by industrialists and financiers to take advantage of wartime technology.

TrevayneW
Trevayne

Trevayne is Robert Ludlum's fourth novel, published in 1973 under the pseudonym Jonathan Ryder.

The Tristan BetrayalW
The Tristan Betrayal

The Tristan Betrayal is a novel by Robert Ludlum, published posthumously in 2003. Ludlum wrote an outline shortly before his death. The novel itself was written by a ghostwriter.