“We have known for several days that someone was dogging us,” Bob told him, and then he explained about the mysterious tracks.
“I guess I can clear up that part of it also,” Stebbins said, as he stepped over to the bunks and knelt down on the floor. He reached far under the lower bunk and dragged out two objects, which he held out to Bob.
“Well, I’ll be jiggered,” he said.
The things which Stebbins had in his hands were two large frames made to strap on to a shoe.
“They made those tracks all right,” Bob declared, as he examined them.
“No doubt about that,” Jack agreed.
“Well, there’s two mysteries cleared up,” Rex said.
“And there’s only one left to be solved,” Bob said grimly.
“And what’s that?” Rex asked.
“How we’re going to get out of this scrape.”