"What was she like?
How was she dressed ?" Lister was rather surprised to find he could not answer satisfactorily.
It was not the girl's physical qualities but her emotions he had marked.
He remembered the pluck with which she had struggled against the fear she obviously felt, her impulsive trust when he offered help, and her relief when she got into the locomotive cab.

Although he had studied her at Montreal, it was her effort to play a part that impressed him most.
"She was young, and I think attractive," he replied.

"She wore a knitted cap and a kind of jersey a girl might use for boating.

I thought she came from a summer camp." Cartwright's face was inscrutable, but Lister saw the others' interest was keen.

Mrs.Cartwright's eyes were fixed on him and he got a hint of suspense.