Hell Train — Christopher Fowler

Imagine there was a supernatural chiller that Hammer Films never made. A grand epic produced at the studio's peak, which played like a cross between the Dracula and Frankenstein films and Dr Terror's House Of Horrors...

Four passengers meet on a train journey through Eastern Europe during the First World War, and face a mystery that must be solved if they are to survive. As the ‘Arkangel' races through the war-torn countryside, they must find out:
--What is in the casket that everyone is so afraid of?
--What is the tragic secret of the veiled Red Countess who travels with them?
--Why is their fellow passenger the army brigadier so feared by his own men?
--And what exactly is the devilish secret of the Arkangel itself?

Bizarre creatures, satanic rites, terrified passengers and the romance of travelling by train, all in a classically styled horror novel.