While the head of the world's largest defense contractor conspires to gain even more riches by instigating a war, an intelligence agent reluctantly travels to keep the world safe, and a journalist receives a mysterious offer to interview the sole survivor of a recent massacre.

FBI Special Agent Kate O'Hare is known for her fierce dedication and discipline on the job, chasing down the world's most wanted criminals and putting them behind bars. Her boss thinks she is tenacious and ambitious; her friends think she is tough, stubborn, and maybe even a bit obsessed. And while Kate has made quite a name for herself for the past five years, the only name she's cared about is Nicolas Fox, an international crook she wants in more...

In the wake of a Munich writer's assassination, Mossad agent Gabriel Allon and Vatican priest Pietro embark on dangerous journeys that reveal long-buried secrets affecting the fates of millions of people.

HarperCollins is proud to present its new range of best-loved, essential classics. 'I snapped the switch, but there was nobody there. Then I saw something in the far corner which made me drop my cigar and fall into a cold sweat.' When Richard Hannay is warned of an assassination plot that has the potential to take Britain into a war, and then a few days later discovers the murdered body of the American that warned him in his flat, he becomes a prime...

In 1940, eighteen-year old Juliet Armstrong is reluctantly recruited into the world of espionage. Sent to an obscure department of MI5 tasked with monitoring the comings and goings of British Fascist sympathizers, she discovers the work to be by turns both tedious and terrifying. But after the war has ended, she presumes the events of those years have been relegated to the past forever.

""London Rules might not be written down, but everyone knows rule one. Cover your arse. Regent's Park's First Desk, Claude Whelan, is learning this the hard way. Tasked with protecting a beleaguered prime minister, he's under attack: from the showboating MP who orchestrated the Brexit vote; from the showboat's wife, a tabloid columnist; from the PM's favourite Muslim, who's about to be elected mayor of the West Midlands; and especially from his own...

Exploring a small island off the Washington State coast in 1941, five brothers make an astonishing discovery that is interrupted by the attack on Pearl Harbor and has ramifications for Cabrillo's present-day investigation into a crashed satellite in the Argentine jungle.

"In Washington, D.C., on a night full of rain, a woman is struck down and killed by a hit-and-run driver. But she is not just any woman--she is the assistant to the head of the secret White House department known only as the Basement. And she had secrets of her own. In the Virgin Islands, former president Jake Cazalet receives a warning. He is recuperating on a diving trip after successfully helping Sean Dillon and the rest of the "Prime Minister's...

Receiving intelligence from the Campus that the world's most threatening terrorist has been tracked to a specific location, Jack Ryan, Jr., the organization's latest recruits, and his cousins embark on a dangerous mission to capture him.

"An utterly enchanting, immersive novel about an irrepressible young heroine who becomes an undercover agent during World War II-a sparkling debut, by turns heartwarming and heartbreaking. One blustery night in 1928, a whale washes up on the shores of the English Channel. By law, all whales belong to the King, but twelve-year-old Cristabel Seagrave has other plans. She and the rest of the household and their guests-her sister, Flossie (known affectionately...