On a quiet late-night train from Vennmore to Calderwick, veteran conductor Marcus Webb makes his final walkthrough of the evening.

In the last carriage, he discovers a woman sitting alone by the window — hands carefully folded in her lap, staring into the darkness. She has no ticket, no identification, and no record in the passenger manifest.

What should have been a routine journey becomes the beginning of a meticulous and deeply unsettling investigation.

Led by Detective Sergeant Iolanthe Marsh, the case reveals layers of corporate secrecy, erased truths, and a calculated crime hidden in the ordinary rhythms of the rail network. As Marsh and Webb dig deeper, they uncover how far powerful institutions will go to protect their interests — and how much one determined individual can threaten them.

Atmospheric, intelligent, and quietly powerful, The Last Passenger is a literary crime thriller about whistleblowing, moral courage, and the invisible lines between silence and justice.