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.

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.

A man called Milton walks into town.... On the run from his own demons, John Milton treks through the Michigan wilderness into the town of Truth. He's not looking for trouble, but trouble's looking for him. He finds himself up against a small-town cop who has no idea with whom he is dealing and no idea how dangerous he is. But Milton is double crossed and badly injured. Unarmed and alone, he flees into the remote Porcupine Mountains with a posse on his tail. His enemies thought they could hunt him down.

Meet John Milton. He considers himself an artisan. A craftsman. His trade is murder. Milton is the man the government sends after you when everything else has failed. Ruthless. Brilliant. Anonymous. Lethal. You wouldn't pick him out of a crowd but you wouldn't want to be on his list. But now, after ten years, he's had enough - there's blood on his hands and he wants out. Trouble is, this job is not one you can just walk away from. He goes on the run, seeking atonement for his sins by helping the people he meets along the way.

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 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'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.

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 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.

Rio de Janeiro. Brazilians call it Cidade Maravilhosa - the Marvellous City - but crime festers in its favelas like cancer. John Milton is visiting an old friend who runs a close protection business guarding the city's elite. Milton offers to stand in when one of his bodyguards doesn’t turn up for work. The job? Take the wife and daughter of an anticorruption judge to a school recital and bring them back again. Simple? Not so much. The girl is snatched off the street, and Milton is nearly killed. As he recovers at a Group Fifteen safe house, he decides on two objectives.

Is John Milton on the path to redemption or the road to revenge? John Milton has done some bad things in his life. Very bad things. Now he’s looking for ways to make amends. But trouble always seems to be looking for him. Heading from San Francisco to Las Vegas, Milton’s solo road trip takes an unexpected turn when he picks up Jessica Russo, a young woman in distress at the side of the road. She urgently needs a ride and he’s happy to help her out. But what starts out as a simple favour quickly becomes something more sinister....

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.