Agent Seventeen : a novel
(Book)

Series name and numeration from Goodreads.com.

"First published as Seventeen in 2022 in Great Britain by Hodder & Stoughton, an imprint of Hachette UK."--Title page verso.

"Seventeen is a hit man, the best in the world, given the name because there were sixteen before him. Every spy organiztion in the world wants his services and every other high-level assassin has placed a target on his back. Because to be the best, you have to beat the best. But when Seventeen is ordered to find and kill his predecessor, Sixteen, the hit goes wrong and hunter turns to hunted. As an ultraviolent duel develops between the two killers, the real target of the job emerges, and Seventeen realizes they must join forces to defeat their joint enemy--and prevent the deaths of hundreds of thousands of innocent civilians."--,Provided by publisher.