"Not a bit of it. I'm going to have a hunt for it."
"But how can you when Mr. Petrofsky can't go along to show us the way? Besides, we wanted to help rescue his brother, and now we can't."
"Well, I'm going to make a big try," declared the young inventor firmly. "And the first thing I'm going to do is to get our friend out of the clutches of the Rusian police."
"You are? How?"
"I'm going to make a search for him. Look here, Ned, he must have been taken away some time to-day—perhaps only a few hours ago—and they can't have gone far with him."
"How do you make that out?" Ned wanted to know.
"Well, I guess I'm detective enough for that," and Tom smiled. "Look here, the doors and windows are open. Now it rained last night, and there was quite a wind. If the windows had been open in the storm there'd be some traces of moisture in the rooms. But there isn't a drop. Consequently the windows have been opened since last night."
"Say, that's so!" cried Ned admiringly.
"But that's not all," went on Tom. "Here's a bottle of milk on the table, and it's fresh," which he proved by tasting it. "Now that was left by
