Sleeper 13

The novel, published by Orion in 2018, follows a protagonist who is smuggled to the Middle East as a child, trained as one of the most elite insurgents of his generation and forced to do things no one should for a cause he couldn’t believe in. But as his brothers were preparing to kill, he was looking for a way out. On the eve of the deadliest coordinated attacks the world has ever seen, he finally has his chance and looks to break free and hunt down those who made him a monster.