Hugh Legat is a rising star of the British diplomatic service, serving at 10 Downing Street as a private secretary to the Prime Minister, Neville Chamberlain. Paul von Hartmann is on the staff of the German Foreign Office - and secretly a member of the anti-Hitler resistance. The two men were friends at Oxford in the 1920s, but have not been in contact since. Now, when Hugh flies with Chamberlain from London to Munich, and Hartmann travels on Hitler's train overnight from Berlin, their paths are set on a disastrous collision course.

Berlin, 1964. The Greater German Reich stretches from the Rhine to the Urals and keeps an uneasy peace with its nuclear rival, the United States. As the Fatherland prepares for a grand celebration honoring Adolf Hitler's 75th birthday and anticipates a conciliatory visit from US president Joseph Kennedy and ambassador Charles Lindbergh, a detective of the Kriminalpolizei is called out to investigate the discovery of a dead body in a lake near Berlin's most prestigious suburb.

Adam Lang has been Britain’s longest serving—and most controversial—prime minister of the last half century. As pressure mounts for Lang to complete this memoirs, he hires a professional ghostwriter to finish the book. As he sets to work, the ghostwriter discovers many more secrets than Lang intends to reveal, secrets with the power to alter world politics - secrets with the power to kill.

1660 England. General Edward Whalley and his son-in law Colonel William Goffe board a ship bound for the New World. They are on the run, wanted for the murder of King Charles I—a brazen execution that marked the culmination of the English Civil War, in which parliamentarians successfully battled royalists for control.

When Tiro, the confidential secretary (and slave) of a Roman senator, opens the door to a terrified stranger on a cold November morning, he sets in motion a chain of events that will eventually propel his master into one of the most suspenseful courtroom dramas in history.

All along the Mediterranean coast, the Roman empire’s richest citizens are relaxing in their luxurious villas, enjoying the last days of summer. The world’s largest navy lies peacefully at anchor in Misenum. The tourists are spending their money in the seaside resorts of Baiae, Herculaneum, and Pompeii. But the carefree lifestyle and gorgeous weather belie an impending cataclysm, and only one man is worried.

The pope is dead. Behind the locked doors of the Sistine Chapel, 118 cardinals from all over the globe will cast their votes in the world's most secretive election. They are holy men. But they have ambition. And they have rivals. Over the next 72 hours, one of them will become the most powerful spiritual figure on earth.

1468. A young priest, Christopher Fairfax, arrives in a remote Exmoor village to conduct the funeral of his predecessor. The land around is strewn with ancient artifacts - coins, fragments of glass, human bones - which the old parson used to collect. Did his obsession with the past lead to his death? Fairfax becomes determined to discover the truth. Over the course of the next six days, everything he believes - about himself, his faith, and the history of his world - will be tested to destruction.

Nat, a 47 year-old veteran of Britain’s Secret Intelligence Service, believes his years as an agent runner are over. He is back in London with his wife, the long-suffering Prue. But with the growing threat from Moscow Centre, the office has one more job for him. Nat is to take over The Haven, a defunct substation of London General with a rag-tag band of spies. The only bright light on the team is young Florence, who has her eye on Russia Department and a Ukrainian oligarch with a finger in the Russia pie.

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.

A killer going by the name of "Crimson Jack" is stalking the wartime streets of London, murdering women on the exact dates of the infamous Jack the Ripper killings of 1888. Has the Ripper somehow returned from the grave? Is the self-styled Crimson Jack a descendant of the original Jack-or merely a madman obsessed with those notorious killings?

West Berlin, 1979. Helen Abell oversees the CIA's network of safe houses, rare havens for field agents and case officers amidst the dangerous milieu of a city in the grips of the Cold War. Helen's world is upended when, during her routine inspection of an agency property, she overhears a meeting between two unfamiliar people speaking a coded language that hints at shadowy realities far beyond her comprehension. Before the day is out, she witnesses a second unauthorized encounter, one that will place her in the sight lines of the most ruthless and powerful man at the agency.

Jesus of Nazareth has been dead for some 65 years. The eyewitnesses to this extraordinary life have died, often as martyrs, and only a scattered handful remain. Might anyone have resolved to interview those last few before it was too late, it being a matter of mind-boggling importance? What if someone had? Mysterium I: Rome presents the story of a young Roman scholar who determines to do precisely that.

Lily Saint James grew up traveling the European continent, learning languages as she went. In 1938, her mother's abrupt death brings her back home to Washington, DC, and after the bombing of Pearl Harbor, Lily comes to the attention of the Office of Strategic Services (OSS). Her knowledge of German, French, and Italian makes her the perfect OSS Agent, and her quick thinking places her as a nanny in the household of an important German Army Colonel, where she is able to gather intelligence for the Allies.

Arthur Youngblood Hawke, an ex-Navy man moves from rural Kentucky to New York to assault the citadel of New York publishing with his first novel, an oversized manuscript that becomes an instant success. Toasted by critics and swept along on a tide of popularity, he gives himself over to the lush life that gilds artistic success. Love comes with an affair with an older married woman and an unfulfilled flame with his editor, while wealth pours in with the publication of his second novel, and participation in real-estate developments.