long aisle between tracks to where the Paris train stood. It began to move before they had reached its mid-length. A guard threw open a carriage door, in they hopped, and with a rattle of chains and banging of buffers the Express du Nord was off on its arrow flight from Calais to the capital.
The carriage, which was of the second class, was comfortably filled. Miss Gerson stumbled over the feet of a puffy Fleming nearest the door, was launched into the lap of a comfortably upholstered widow on the opposite seat, ricochetted back to jam an elbow into a French gentleman's spread newspaper, and finally was catapulted into a vacant space next to the window on the carriage's far side. She giggled, tucked the skirts of her pearl-gray duster about her, righted the chic sailor hat on her chestnut-brown head, and patted a stray wisp of hair back into place. Her meteor flight into and through the carriage disturbed her not a whit.
As for the Samaritan, he stood uncertainly in the narrow cross aisle, swaying to the swing of the carriage and reconnoitering seating possibilities. There was a place, a very