Death in the Tunnel

On a gloomy November evening, Sir Wilfred Saxonby boards the 5 o'clock train from Cannon Street, settling into a locked compartment for the journey. But as the train slows and stops inside a dark tunnel, tragedy strikes. By the time the train emerges, Sir Wilfred lies dead, a single bullet piercing his heart. Suicide seems the obvious answer—yet no motive surfaces to explain why.

Inspector Arnold of Scotland Yard begins to question this theory when he discovers a mysterious red light that caused the train to stop in the tunnel. Stymied by the peculiar details of the case, he enlists the help of his friend Desmond Merrion, a wealthy amateur criminologist. Merrion suspects a carefully orchestrated conspiracy, but the motive and identities of those involved remain elusive. Could the crime be linked to Sir Wilfred’s unblemished family life, his thriving business, or his imperious and uncompromising nature?

As the investigators dig deeper, they uncover a labyrinth of secrets and lies. Will Merrion's sharp mind unravel the truth before it’s too late?