Robert Harland ended his career as a British spy in an Austrian hospital, after being tortured and beaten by Czech security agents in the last days of the communist regime. He was young enough then to find a new life with the Red Cross and then with the UN.

Paul Samson is living in London and picking up some extra work for a private security company when he is almost killed by a thuggish assassin while tailing a mysterious and gifted young employee of a powerful environmental NGO. The murder of legendary spy Robert Harland, the poisoning of billionaire philanthropist Denis Hisami with a neurotoxin in the United States House of Representatives, and a second attempt on Samson's own life send him on the run to Estonia to figure out who is trying to kill him, and why.

On a deserted road in Calabria, Greek aid worker Anastasia Cristakos is driving alone to visit one of the new refugee centers funded by billionaire Denis Hisami, whom she has recently married. She slows down to greet two African migrants she recognizes. Too late she realizes they are not her friends. This is an ambush. She manages a desperate phone call to Hisami before her Mafia kidnappers silence her with a powerful drug. Hours later she wakes up in the pitch dark on a container ship, powering eastward across the Mediterranean.

A Russian defector is found brutally murdered in a London hotel. Only four people knew he had turned - the four most important and powerful figures in Whitehall. There's only one conclusion - a mole has infiltrated the highest levels of the nation's security. Operating in secret from within Westminster's darkest corners, former spy Solomon Vine must uncover the traitor. Because Britain's future hangs in the balance. And with it the fate of the whole world.

Lachlan Kite is a member of BOX 88, an elite transatlantic black-ops outfit so covert that not even MI6 and the CIA are certain of its existence - but even the best spy can't anticipate every potential threat in a world where dangerous actors lurk around every corner. At the funeral of his childhood best friend, Lachlan falls into a trap that drops him into the hands of a potentially deadly interrogation, with his pregnant wife, also abducted, being held as collateral for the information he's sworn on his own life to protect.

After the assassination of his wife and son, Gabriel Allon retires from his brutal anti-terrorist career and loses himself in his previous cover job: art restoration. But when Tariq al-Hourani, the Palestinian terrorist responsible for his family’s death, begins a killing spree designed to destroy Middle East peace talks, Gabriel once again slips into the shadowy world of international intrigue. In a global game of hide-and-seek, the motives of Gabriel and Tariq soon become more personal than political.

Lyndsey was once a top handler in the Moscow Field Station, where she was known as the "human lie detector" and praised for recruiting some of the most senior Russian officials. But now, three Russian assets have been exposed - including one of her own - and the CIA is convinced there's a mole in the department. With years of work in question and lives on the line, Lyndsey is thrown back into life at the agency, this time tracing the steps of those closest to her.

Only she knows the truth. Only he can tell the world. Vienna, 1946. A brilliant German scientist spirited out of the ruins Nazi Europe in search of a new life. Moscow, 1964. A rising star of the British diplomatic service whose job is not what it seems. London, the present day. A once promising academic offered an opportunity to seal his place in history. Their stories, their lives, and the fate of the world, are bound by a single document: The Scarlet Papers. The devastating secrets contained within teased by a brief invitation: Tomorrow 11AM. Take a cab and pay in cash. Tell no one.

Two years ago, a hostile Prime Minister launched the Monochrome inquiry, investigating "historical over-reaching" by the British Secret Service “to investigate historical over-reaching.” Monochrome’s mission was to ferret out any hint of misconduct by any MI5 officer—and allowed Griselda Fleet and Malcolm Kyle, the two civil servants seconded to the project, unfettered access to any and all confidential information in the Service archives in order to do so. But MI5’s formidable First Desk did not become Britain’s top spy by accident, and she has successfully thwarted the inquiry at every turn.

The world is on the brink of crisis. The Cold War is playing out once more on the global stage. And governments will do whatever it takes to stay at the top. To those who don't really know her, Kate Henderson's life must seem perfectly ordinary. But she is in fact a senior MI6 officer, who right now is nursing the political equivalent of a nuclear bomb. Kate's most recent mission has yielded the startling intelligence that the British Prime Minister has cancer - and that one of the leading candidates to replace him may be a Russian agent of influence.

CIA Case Officer Sam Joseph is dispatched to Paris to recruit Syrian Palace official Mariam Haddad. The two fall into a forbidden relationship, which supercharges Haddad's recruitment and creates unspeakable danger when they enter Damascus to find the man responsible for the disappearance of an American spy. But the cat-and-mouse chase for the killer soon leads to a trail of high-profile assassinations and the discovery of a dark secret at the heart of the Syrian regime.

It is the dawn of the 1960s. In order to investigate the gruesome death of a brilliant young physicist, KGB officer Major Alexander Vasin must leave Moscow for Arzamas-16, a top-secret research city that does not appear on any map. There he comes up against the brightest, most cutthroat brain trust in Russia who, on the orders of Nikita Khrushchev himself, are building a nuclear weapon with 3,800 times the destructive potential of the Hiroshima bomb.

When disgraced spy Solomon Vine's friend and rival Gabriel Wilde vanishes without trace, it's only Vine who might be able to discover what has happened to him. A single missing file holds the key. That, too, is gone. But its contents, Vine is told, are incendiary. There were few Wilde could trust. And being one of them appears to have fatal consequences. But as Vine's off-the-books investigation begins to reveal the shocking truth, he realizes there's much more at stake than one man's life.

The story opens with the apparently accidental drowning of a sixth form student in the Norfolk countryside. As a matter of routine, or so it seems, the case passes across the desk of Detective Sergeant Smith, recently returned to work after an internal investigation into another case that has led to tensions between officers at Kings Lake police headquarters. As an ex-DCI, Smith could have retired by now, and it is clear that some of his superiors wish that he would do so.

Ariel Price wakes up in Lisbon, alone. Her husband is gone—no warning, no note, not answering his phone. Something is wrong. She starts with hotel security, then the police, then the American embassy, at each confronting questions she can’t fully answer: What exactly is John doing in Lisbon? Why would he drag her along on his business trip? Who would want to harm him? And why does Ariel know so little about her new—much younger—husband?