burg and perhaps they can get some information for us, as to where my brother is.
"That will be good," declared Mr. Damon. "Bless my icicle! But the more I think of this trip the better I like it!"
It was arranged that the Russian should call again soon, when the plans would be nearer in shape, and in the meanwhile he must learn all he could from revolutionary friends in Siberia.
It was a week after this, during which Tom, Ned and the others had been very busy, that Tom decided to take a trip to see their Russian friend. They had not heard from him since his visit, and Tom wanted to learn something about the strength of the Siberian winds.
He and Ned went in one of the small airships and soon they were hovering over the grounds surrounding the lonely house where Ivan Petrofsky lived.
"He doesn't seem to be at home," remarked Ned, as they descended and approached the dwelling.
"No, and it looks quite deserted," agreed the young inventor. "Say, all the doors are open, too! He shouldn't go away and leave his house open like that—with the valuable platinum there."
"Maybe he's asleep," suggested Ned.
