The long-distance trains were fitted up exactly as moving hotels, and the traveller, from London to Pekin or Montreal, was not under the slightest necessity of leaving the train, unless he chose to do so, from end to end of the journey.

One more advantage of railway travelling in the twenty-first century may be mentioned here. It was entirely free, both for passengers and baggage. Easy and rapid transit being considered an absolute necessity of a high state of civilisation, just as armies and navies had once been thought to be, every self-supporting person paid a small travelling tax, in return for which he or she was entitled to the freedom of all the lines in the area of the Federation.

In addition to this tax, the municipality of every city or town through which the lines passed, set apart a portion of their rent-tax for the maintenance of the railways, in return for the advantages they derived from them.

Under this reasonable condition of affairs, therefore, all that an intending traveller had to do was to signify the date of his departure and his destination to the superintendent of the nearest station, and send his heavier baggage on in advance by one of the trains devoted to the carriage of freight. A place was then allotted to him, and all he had to do was to go and take possession of it.

The Continental Station was comfortably full of passengers when Olga and Serge reached it, about fifteen minutes before the departure of the Eastern express; for people were leaving the Capital of the World in thousands just then, to spend Christmas and New Year with friends in the other cities of Europe, and especially to attend the great Winter Festival that was held every year in St. Petersburg in celebration of the anniversary of Russian freedom.

Ten minutes before the express started, they ascended in one of the lifts to the platform, and went to find their seats. As they walked along the train, Olga suddenly stopped and said, almost with a gasp—

“Look, Serge! There are two Aerians, and one of them is”—

“Who?” said Serge, almost roughly. “I didn’t know you had any acquaintances among the Masters of the World.”

The son of the Romanoffs hated the very name of the Aerians, so bitterly that even the mere suspicion that his idolised betrothed should have so much as spoken to one of them was enough to rouse his anger.