In the Train details

“Tickets, please!” said the Guard, putting his head in at the window. In a moment everybody was holding out a ticket: they were about the same size as the people, and quite seemed to fill the carriage.

[. . .]

All this time the Guard was looking at her, first through a telescope, then through a microscope, and then through an opera-glass. At last he said, “You’re travelling the wrong way,” and shut up the window and went away. (p. 52)