"See anything, Dave?" asked Jimmie, at once, as the boys grouped about the Eagle, being careful not to tread in the tracks left by the one who had meddled with their engines.
"Yes," responded Dave, instantly. "He was a shortish chap, you know, because he had to stand on his toes here to reach the engines."
"And I think he was a Uhlan," went on Jimmie, pointing to other tracks. "I can see the mark of the spur chain under his instep."
"He must have put his hand right here," added Dave, indicating a spot on the forward wings that showed grimy finger marks. "He had a scar extending across all four fingers. See the print on it?"
"I'll bet I know who it was!" declared Jimmie, seizing Dave by the shoulder. "If that wasn't Otto, I'll go back and enlist all over!"
"Sure enough," replied Dave. "He was just about that height, and of course he wore spurs and all that. I don't know about the scar."
"Well, we will look for a short, heavy set Uhlan with a scar on his hand, and when we find him we'll choke those plugs out of him!"
"Shall we start after him now, boys?" inquired Jack.
"I vote 'No' on the original question," said Jimmie, instantly. "It's pretty near dinner time and I'm as hungry as bears ever get and then some. Have you got anything to eat, Ned?"
"Sure we have," was Ned's hearty response. "Got some mighty fine food, too. You'll like it, I'm sure. Those tracks can wait."