Ex-deniable operator Nick Stone seems to be living his dream, not a care in the world as he steers his camper van round the surfing and parachuting paradise of Australia, a board on the roof, a freefall rig behind him, and a beautiful young backpacker at his side.But when he sees a news report of the massacre of women and children in a terrorist outrage the other side of the world, long-suppressed memories are triggered, and Nick knows he must risk everything to repay a longstanding debt of friendship.

Bodyguarding a TV crew on the streets of war-torn Basra, ex-deniable operator Nick Stone seems certain to die when insurgent gunmen attack. Only the reporter's swift action saves his life. When the reporter vanishes within hours, presumed kidnapped, Stone is asked by the Intelligence Service to find him. The trail leads from Iraq to London, Dublin, and ultimately Kabul: the dark and brutal city where governments, terrorism, and big business inexorably collide.

Nick Stone's future has never looked as bleak. The only person he's ever loved is dead. The only people who might give him a reason not to join her have turned their backs. Until a chance encounter with a man he saved ten years ago appears to throw him a lifeline . . .But on the bullet- and bomb -scarred streets of Baghdad, second chances are in short supply.

A cargo ship is apprehended by the authorities off the coast of Spain, loaded to the gunwales with enough arms and ammunition to start a war. Twenty years later an unknown aggressor seems intent on eradicating those responsible for the treachery one by one. The last victim was brutally tortured with a Black & Decker drill, then shot through the head. And Nick Stone - ex-SAS, tough, resourceful, ruthless, highly trained - is next on the killer's list....

Outside of Pakistan, the world's highest concentration of al-Qaeda lurks in Southeast Asia and there, Nick Stone's bosses get wind of an act of terror that will dwarf even the nightmare of 9/11. When Stone is dispatched to Malaysia by the CIA to assassinate a biochemist, he expects his mission to be a straightforward part of the fight against Bin Laden. But there are complications, not least because he is working alongside an attractive woman whose motives he doesn't fully understand.

When the beautiful 20-year-old daughter of a Moldovan businessman goes missing from her university, British Intelligence are unusually interested in her safe return. They will do anything in their power to track her down. Only one man is skilled and ruthless enough for the job - but for the first time in his life, Nick Stone doesn't want to play ball.

Somalia - a lawless, violent land, ignored by the West, ripped apart by civil war and famine, fought over by drug-fuelled, gun-crazy clan fighters. They want the world to sit up and take notice. They have a new and terrifying weapon - pirates. And now, the pirates have in their possession the young son of a Russian oligarch, snatched from a luxury yacht in the Seychelles. His father wants him back, will pay anything, stop at nothing to retrieve his boy. Up to now everything he has tried has failed. 

Three tons of Saddam Hussein's gold in an unguarded warehouse in Dubai.... For two of Nick Stone's closest ex-SAS comrades, it was to have been the perfect, victimless crime. But when they're double-crossed and the robbery goes devastatingly wrong, only Stone can identify his friends' killer and track him down.... 

Nick Stone - deniable operator for British Intelligence - has been assigned to carry out an officially-sanctioned assassination. When he realizes who the target is, he refuses. But he is then given a chilling ultimatum: fly to Central America and finish the job, or the eleven-year-old orphan in his care will get killed. Stone arrives in sweltering Panama close to breaking point. His life is in pieces, but things only get worse when he finds himself caught at the centre of a lethal conspiracy involving Columbian guerrillas.

When a young trooper is shot in the head at the Regiment’s renowned Killing House, Nick Stone is perfectly qualified to investigate the mysterious circumstances more deeply. He has just returned from Moscow – still trying to come to terms with the fact that his girlfriend and baby son are safer there without him – so combines an unrivalled understanding of the Special Forces landscape with a detachment that should allow him to remain in cover.

1993: Under deep cover, Nick Stone and a specialist surveillance team have spent weeks in the jungles and city streets of Colombia. Their mission: to locate the boss of the world's most murderous drugs cartel - and terminate him with extreme prejudice. Now they can strike. But to get close enough to fire the fatal shot, Nick must reveal his face. It's a risk he's willing to take - since only the man who is about to die will see him.

Ex-SAS trooper Nick Stone is extremely highly trained. Clever, ruthless and very effective, it is no surprise that he is hired by British Intelligence. On deniable operations - one of the most dangerous lines of work. Sarah Greenwood is beautiful, intelligent and cunning - and the only woman Stone has ever truly opened up to. But now he has been ordered to hunt her down. Hotly pursued through the American wilderness, Stone finds himself at the centre of a deadly game of cat and mouse.

Ex-deniable operator Nick Stone has spent a lifetime in harm's way - but when someone he cares for very deeply is murdered in cold blood, he can no longer just take the pain. A high-level internecine conflict at the dark heart of the resurgent Russian Empire and an assassin's bullet on an isolated Alpine pass propel him from an apparently run-of-the-mill close-protection task into his most brutal and challenging mission yet. As the body count increases, Stone becomes one of Europe's most wanted.

Out on the ice, polar bears aren't the only natural born killers. Nick Stone is suffering. The two people he cared for most are gone. Thousands of miles away, five ex-servicemen, badly wounded in Afghanistan, are preparing for a trek to the North Pole in an attempt to begin to rebuild their shattered bodies and minds. When Stone is summoned as close protection for the trek by an old SAS officer, he accepts unthinkingly, desperate for the chance to escape his own misery.

Nick Stone is back in London, but if he thought he was home for a break, he's very, very wrong. Backed into a corner by a man he knows he cannot trust, ex-deniable operator Nick Stone strikes a devil's bargain. In exchange for his own safety - a life for a life - Stone is charged with locating someone who doesn't want to be found, currently hiding out in the one of the remotest corners of the UK. And for the first time in a long time, he's not operating alone.