Petrofsky who, with Mr. Damon, was inside the airship doing some small repairs.
"There's a Russian out here, Mr. Petrofsky," said Tom, "and what he wants I can't make out."
The exile was quickly on the scene and, after a first glance at the man, hurried up to him, grasped him by the hand and at once the two were talking such a torrent of hard-sounding words that Tom and Ned looked at each other helplessly, while Mr. Damon, who had come out, exclaimed:
"Bless my dictionary! they must know each other."
For several minutes the two Russians kept up their rapid-fire talk and then Mr. Petrofsky, evidently realizing that his friends must wonder at it, turned to them and said:
"This is a very strange thing. This man is an escaped convict, as I once was. I recognized him by certain signs as soon as I saw him, though I had never met him before. There are certain marks by which a Siberian exile can never be forgotten," he added significantly. "He made his escape from the mines some time ago, and has suffered great hardships since. The revolutionists help him when they can, but he has to keep in concealment and travels from town to town as best he may. He has heard of our airship, I suppose from inquiries the revolutionists have been
