The Darkest Day by Tom Wood

In this gripping thriller, a seasoned assassin finds himself embroiled in a high-stakes game of cat and mouse as he navigates the treacherous underworld of espionage and betrayal. Tasked with a seemingly straightforward mission, he soon discovers that nothing is as it seems, and every ally could be a potential enemy. As the clock ticks down, he must rely on his instincts and skills to unravel a complex web of deceit and survive a relentless pursuit, all while confronting his own dark past and the moral dilemmas that come with his line of work.

Purchase from Bookshop.org