The sky was perfectly clear and cloudless, save for a few light clouds that hung about the eastern horizon, and were blazing gold and red in the light of the newly-risen sun. The air-ship was flying at an elevation of about two thousand feet, which appeared to be her normal height for ordinary travelling. There was land upon both sides of them, but in front opened a wide bay, the northern shores of which were still fringed with ice and snow.
"That is the Gulf of Finland," said Arnold. "The winter must have been very late this year, and that probably means that we shall find the eastern side of the Ourals still snow-bound."
"So much the better," replied Colston. "They will have a much better chance of escape if there is good travelling for a sleigh."