Jack Falcon and The Clockwork Assassin

London, 1948. The war is over - at least on paper. But beneath Westminster, the clocks are still ticking. Jack Falcon, former military intelligence officer and now the quiet shadow of Department 7 - a branch the government swears doesn't exist - is called to investigate an impossible death inside Whitehall. What begins as a murder becomes something far worse: a machine-precise execution, triggered by time itself.
Every clue leads deeper - into abandoned tunnels drowned in fog and memory, to a vanished wartime engineer obsessed with perfect synchronization, and to a secret society that believes time is the ultimate weapon. Their name is Horologium. And they intend to reset London like a broken watch. From the Charing Cross underworld to the beating heart of Big Ben, Falcon must stop a clockwork network capable of firing death across the city with mathematical precision.
But Mallory, the rogue clockmaker, may not have been the enemy. Worse - someone inside Whitehall is still winding the mechanism. Because time does not pass in London. It obeys. For fans of le Carré, Sherlock Holmes, and The Prestige - a cinematic, gaslit espionage thriller where time itself kills.