"Maybe he wouldn't pay any attention," protested Harry.
"I'll shoot through the door, then! That'll fetch him!"
"Jimmie, you're reckless!" laughed Ned, knowing full well that Jimmie would not consider such a dangerous experiment. "Perhaps we'll find out in a short time just what is going on."
"Yes, I think so!" agreed Jimmie. "I can smell that hot box again! It is getting stronger! I'll bet he's got two hot boxes!"
At this a general laugh went up. The boys found it impossible to resist Jimmie's droll humor in trying moments. Many times had the lad held courage in their hearts by his comments on trivialities.
Directly the boys heard the loud clamor of an engine which evidently belonged to the aircraft that had so recently approached.
"Now, what's he up to?" queried Harry, trying vainly to look from the one small window. "Sounds as if he were starting away!"
"That's what he's doing!" replied Jack. "Cooled his hot box!"
"He did not!" protested Jimmie vigorously. "I smell it yet!"