John Milton is used to operating in the shadows, weaving his way through dangerous places behind a fake identity. Now, to avenge the death of a close friend, he must wear his mask of deception once more. Beau Baxter was brutally murdered by a drugs cartel but that doesn’t stop Milton from blaming himself for his friend’s death. With the help of a trusted team of undercover experts and Beau’s son, Milton is determined to track down the killers. And he isn't just after the man who gave the order. He’s heading right for the top.  

John Milton hasn't seen Elijah Warriner for three years. The last time they met, Milton's efforts to keep the boy safe didn't go exactly to plan. Now Elijah is a promising boxer, preparing for the bout that will take him to the big time. Milton decides that he will spend the week before Christmas in London so that he can watch the fight. But Elijah's burgeoning fame has brought him to the attention of old acquaintances with long memories and grudges to bear.

John Milton has a nose for trouble. He can smell it a mile away. And when he witnesses a suspicious altercation between a young man and two thugs in a car auction parking lot, he can’t resist getting involved. Milton came to Kansas City hoping to find a way out of danger. His recent vendetta against a cartel hitman who killed his friend has made him enemies in high places. Now he needs to find the only man who can get him out of this mess. 

John Milton travels to Bali in search of a new identity, but he can't even manage the flight without finding someone who needs his help. A beautiful woman falls ill and confesses that she has swallowed packages of cocaine in order to smuggle it across the border. She has been forced to work as a mule by a Yakuza gang in Tokyo who are holding her child to guarantee her compliance. Milton decides that's unacceptable and promises to lend her his help.

When a Russian defector is assassinated in a sleepy English seaside town, Group Fifteen agents John Milton and Michael Pope find themselves in a rush to uncover the culprits and bring them to justice. Their investigation leads them to Moscow and a confrontation with Directorate S, the agency responsible for seeding Russian sleeper agents around the world. When lies and double crossing mean that no-one is what they seem, the two agents - alone and without backup - struggle to achieve their goals under the most dangerous of circumstances.  

New York isn't ready for Britain's most dangerous ex-assassin.... John Milton has finally found a place to escape the bloodshed: off-season Coney Island. No tourists. No special ops. Just peace and quiet. But when a local boy witnesses a grisly murder, Milton can't resist investigating. Milton uncovers a vicious drug kingpin and a group of crooked cops from a notorious precinct known as The Alamo. Against such dangerous foes, Milton's quest for redemption could come to an end.

John Milton's life is about to change. The former government assassin follows a lead to Manila that he hopes will transform everything. But things don't go to plan. He never expected to wake up in an unfamiliar hotel room beside a dead body. And, unfortunately for him, Milton doesn't remember a thing about the night before.... Thrown into a gruesome Filipino prison, he puts together the clues of his betrayal. With no allies and even less hope, Milton must use his wits to escape and take revenge....

An assassin haunted by his past. Two young refugees out of their depth and in need of his special talents. John Milton is no stranger to the world's seedy underbelly. But when the former British Secret Service agent comes up against a ruthless human trafficking ring, he'll have to fight harder than ever to conquer the evil in his path. After Milton meets a refugee who lost a sister to people smugglers, he travels through war-torn Libya and the murkiest parts of Italy and France to get the girl back.

Bury your enemies, and bury them deep. John Milton thought he was done with Avi Bachman. The most dangerous man he's ever known has been incarcerated in Angola, the brutal Louisiana prison. Inmates rarely leave Angola. Once you go in, the only way out is in a box. But Bachman is no ordinary prisoner. He was an assassin for the Mossad, and he has favours to call in.

John Milton is a former assassin for the British government. He is a ronin, trying to atone for his past sins by offering his services to those people who have no one else to whom they can turn. Milton is keeping a low profile in London when he meets Eddie Fabian. Fabian confesses that he is considering suicide and that the reason for his depression was the abuse that he suffered as a child. Milton offers to help, but, before he can, Eddie is found dead in circumstances that Milton considers suspicious.

John Milton is trying to make amends for a career spent killing for the British Secret Service. He has a burning need to right wrongs - and rewrite his own bloody past. He finds himself in Louisiana - the Big Sleazy, the bayou, and the post-Katrina wreckage of the Gulf Coast - with a debt of honor to repay. Isadora Bartholomew, who saved his partner's life, needs his help. Joel Babineaux, a ruthless property magnate, is out to sink the charity she established to help rebuild the Lower Ninth Ward.

John Milton is a ghost. He was Number One. The most dangerous assassin in Group Fifteen, the black-ops organisation that solves problems when diplomacy has failed. Now Milton is Her Majesty's most wanted fugitive - an anonymous loner with a deadly set of skills. So when he is arrested following a brawl in a Texas bar, the last person he expects to bail him out is a glamorous operative from the Russian Secret Service.

John Milton has started to hope that he might have a future. He has a job driving a taxi around the streets of San Francisco. He has his anonymity and his solitude. Being invisible has become a comfortable habit. He doesn't want to be found. But when a girl he drives to a party goes missing, Milton is worried. Especially when two dead bodies are discovered, and the police start treating him as their prime suspect. Milton is a fugitive from the British Secret Service, and a man in his position needs extra attention like he needs a hole in the head.

Nine months ago, Beatrix Rose had her family brutally taken from her. Now all that matters is getting her daughter back. And Beatrix is no ordinary mother - she’s a skilled assassin who will do whatever it takes to find her child. Danny Nakamura deserted his post in Vietnam and disappeared into Hong Kong’s Walled City, vowing never to go home again. Decades later, his health failing, he’s suddenly found a reason to return to LA: the discovery of a daughter he never knew he had. But getting home won’t be easy....

John Milton has been off the grid for six months. He surfaces in Ciudad Juárez, Mexico, and immediately finds himself drawn into a vicious battle with the narco-gangs that control the borderlands. He saves the life of an idealistic young journalist who has been targeted for execution. The only way to keep her safe is to smuggle her into Texas. Working with the only untouchable cops in the city and a bounty hunter whose motives are unclear, Milton must keep her safe until the crossing can be made.