Hex Books in Order

Hex is the name that sticks, but the man behind it is Joshua Thane, a freelance assassin who has spent years surviving by being precise, cold, and one step ahead of everyone else. He works in the overlap between crime and covert power, where the client does not always tell the truth and a finished job is supposed to leave no loose ends. In Wicked Game, that system breaks down. Hex arrives to kill a British microbiologist and recover dangerous data, only to find she is already dead.

Then he makes the choice that changes everything.

Instead of cleaning up the scene and protecting himself, he spares the woman’s teenage son. For a man in his line of work, that is not a small wobble. It is a professional disaster. From that moment on, Hex is exposed to enemies on several sides. The people who hired him no longer trust him, the people chasing the missing data want him silenced, and British intelligence has its own reasons for dragging him deeper into the mess.

That is the core appeal of the series. Hex is dangerous, highly trained, and often ruthless, but he is not a simple killing machine. He is a man whose conscience starts waking up at exactly the wrong time. The books keep asking what happens when somebody built for violence begins making moral choices, and whether there is any real road back once a life like his starts to crack.

The world around him is just as unstable. Criminal bosses, covert operators, and old contacts all have their own agendas. Alliances are temporary. Help usually comes with a hook in it. Later books follow Hex as he tries to step away from murder and build something more ordinary in London, only to find that the past is not done with him. British intelligence still knows where to find him, and each return to action costs more than the last.

He is a hitman with a conscience, which turns out to be a very risky combination.

The tone is fast, dark, and high stakes. These books lean into pursuit, betrayal, international movement, and the practical stress of staying alive when several different groups want the same person, or the same weapon, or the same piece of information. If you like thrillers with a morally gray lead, a strong spy element, and action that grows out of character rather than spectacle alone, Hex is worth a look. Wicked Game gives you the cleanest entry point, because it shows both what Hex is good at and the split second in which his whole operating code starts to fail.