“Don’t do that!” said the third man, pausing in the doorway and speaking in French easily and pleasantly.  “Don’t do that—­if you want the air!”

The boy started and looked round.

“I thank you!  But I do not need the air!”

The man smiled acquiescence, but as he stepped into the carriage he took a sharp look at the boy’s clothes—­the common Russian clothes—­and a slightly questioning, slightly satirical expression crossed his face.  He was a man who knew his world the globe over, and in his bearing lurked the toleration, the kindly scepticism that such knowledge breeds.

“As you please!” he said, settling himself comfortably in the corner by the door, while the elder of his companions—­a tall, spare American—­crossed his long legs and lighted a thin black cigar, and the younger—­a spruce young Englishman wearing an eye-glass and a small mustache—­wrapped himself in his rugs, took a clean pocket-handkerchief from his dressing-case, and opened a large bundle of illustrated papers—­French, German, and English.

For a space the train rocked on.  No one attempted to speak, and the Russian boy continued to stand by the window, pretending to look through the blurred panes, in reality wondering how he could with least commotion pass down the carriage to his own vacated place.

At last the man with the long cigar broke the silence in a slow, cool voice that betrayed his nationality.

“We’re well on time, Blake,” he remarked, drawing out his watch.

The youth by the window shot an involuntary, fleeting glance at the two younger men, to see which would answer to the name; and the student of human nature noted the fact that he understood English.

“Oh, it’s a good service!” he acquiesced, the tolerant look—­half sceptical, half humorous—–­ passing again over his face.

“I don’t know!  I think we could do with another few kilometres to the hour.”  The thin man studied his flat gold watch with the loving interest of one to whom time is a sacred thing.

At this point the youngest of the three raised his head.

“Marvellous sight you have, McCutcheon!  Wish I could see by this light!”

McCutcheon leaned forward, replacing his watch.  “What!  Can’t you see your picture-books?  Let’s have the blinkers off!” He rose, his long, spidery figure stretching up like a grotesque shadow, but as his arm went out to the nearest of the shrouded lamps he was compelled to draw back against the seat of the carriage, and an exclamation of surprise escaped him.

Without warning or apology the Russian boy had turned from the window, and stepping down the carriage, had tumbled into his former seat, hunching himself up with his face to the cushions and his back to his fellow-travellers.

It was a sudden and an uncivil proceeding.  The man called Blake smiled; the Englishman shrugged his shoulders; the American, with a movement of quiet determination, drew back the lamp hoods.