The Passenger from Calais

After a rough crossing from Dover, Colonel Basil Annesley finds he is the only passenger on the Engardine Express from Calais to Lucerne. That is, he is the only passenger until a mysterious woman shows up at the last minute to book a compartment for her servant, an infant and herself. A conversation overheard through the open window of his sleeping compartment only deepens the mystery. The woman ...