When a sample of smallpox from Russia's cache of bioweapons is smuggled into the United States, Jon Smith and his colleagues must unravel the mystery of the Cassandra Compact and recover or destroy the virus - before the power of Armageddon falls into the hands of a madman.

Reformed from his days of as a covert operative and assassin for the US government, Paul Janson has a new mission and a new partner. Working independently with highly skilled sharpshooter Jessica Kincaid, Janson only takes operations he believes contributes to the world's greater good. When his latest job rescuing a doctor abducted in international waters by African pirates goes haywire, Janson realizes he's caught in the middle of something much bigger.

Do you think you know what really happened after World War II? You don't. Sigma made sure of that. "Ludlum's trademark skills of intricate plotting, breakneck pacing, and high-wire drama are all on display in this gripping thriller," writes Amazon.com.

It begins in Geneva. There American lawyer Joel Converse meets a man he hasn't seen in twenty years, a covert operative who dies violently at his feet, whispering words that hand Converse a staggering legacy of death: "THE GENERALS... THEY'RE BACK... AQUITAINE!" Suddenly Converse is running for his life, alone with the world's most shattering secret. Pursued by anonymous executioners to the dark corners of Europe, he is forced to play a game of survival by blood rules he thought he'd long left behind.

Only two rival spies - and one mysterious woman - can stop them: Scofield, CIA, and Talaniekov, KGB. They share a genius for espionage - and a life of terror and explosive violence. Sworn enemies, they have vowed to terminate each other - yet now they must become allies. Because only they possess the brutal skills and ice-cold nerves vital to destroy an international circle of killers, the Matarese.

Colorado Congressman Evan Kendrick is trying to live out his term of office quietly—when a political mole reveals to the world Kendrick's deepest secret: that Kendrick was the anonymous man in Masqar, the man who courageously freed the hostage held in the American embassy by Arab terrorists; the unknown hero who performed an act of outrageous daring then silently disappeared. Now, suddenly, Kendrick is a living target pursued by the terrorists he outwitted.

Tyrell Hawthorne was a naval intelligence officer - one of the best - until the night in Amsterdam when his wife was murdered. Since then he's been sailing charters in the islands. Now he's called out of retirement for one last assignment. For Hawthorne is the only man alive who can track down the world's most dangerous terrorist. Now, with his life and the life of the President hanging in the balance, Hawthorne must follow the terrorist's serpentine trail, a path of seduction, betrayal, an instant death.

The Fourth Reich is waiting to be born. The only man who can stop it is about to sign its birth certificate. In 1945 the children of the Third Reich were secretly hidden all over the world - to be concealed until the 1970's, when they would come of age. Then the most elaborate plans and $780 million in a Swiss bank would be waiting. There would even be an unsuspecting outsider to set the plan into action. that outsider is Noel Holcroft, the American son of a high-ranking Nazi.

In the fall of 1940, the Nazis are at the height of their power. France is occupied, Britain is enduring the Blitz and is under threat of invasion, America is neutral, and Russia is in an uneasy alliance with Germany. Stephen Metcalfe is a well-known man about town in occupied Paris. He's also a minor asset in the U.S.'s secret intelligence forces in Europe. Through a wild twist of fate, it falls to Metcalfe to instigate a bold plan that may be the only hope for what remains of the free world.

Todd Belknap, a legendary field agent for Consular Operations with a reputation as a cowboy, is cut loose from the agency after an operation goes wrong. At the same time, Jared Rinehart, his best friend and fellow agent, is abducted in Lebanon by a militia group with a vicious reputation. When the government refuses to either rescue Rinehart or negotiate for his release, Belknap decides to take matters into his own hands.

Mitch Rapp has worked for a number of presidents over his career, but Anthony Cook is unlike any he’s encountered before. Cunning and autocratic, he feels no loyalty to America’s institutions and is distrustful of the influence Rapp and CIA director Irene Kennedy have in Washington.

Michael Havelock's world died on a moonlit beach on the Costa Brava. He watched as his partner and lover, Jenna Karats, double agent, was efficiently gunned down by his own agency. There was nothing left for him but to quit the game, get out. Until, in one frantic moment on a crowded railroad platform in Rome, Havelock saw his Jenna alive. From then on, he was marked for death by both U.S. and Russian assassins, racing around the globe after his beautiful betrayer, trapped in a massive mosaic of treachery.

Operation Treadstone has nearly ruined Adam Hayes. The top-secret CIA Black Ops program trained him to be an all but invincible assassin, but it also cost him his family and any chance at a normal life. Which is why he was determined to get out. Working as a carpenter in rural Washington state, Adam thinks he has left Treadstone in the past, until he receives a mysterious email from a former colleague, and soon after is attacked by an unknown hit team at his job site.

Ex-Navy SEAL John Clark is the newly named head of Rainbow, an international task force dedicated to combating terrorism. In a trial by fire, he must stop a terrorist group of men and women so extreme that their success could literally mean the end of life on earth as we know it.

On the snow-covered slopes of Utah, the unthinkable has just become a nightmarish reality: thirty Secret Service agents have been viciously executed and the vacationing president of the United States kidnapped by one of the most lethal terrorist organizations in the Middle East - the Fatah Revolutionary Council. But surviving agent and ex-Navy SEAL Scot Harvath doesn't believe the Fatah Revolutionary Council is responsible for the attack.