“All right, that settles it,” said Hugh. “Let me tell you this is just pie for me. I’m never so happy as when trying to find out the answer to some knotty problem. We’ll keep right on, even if the zigzag trail takes us all the way to the town lock-up!”
Ten minutes later Hugh held up his hand warningly.
“Steady, boys!” he remarked quietly. “Here’s a bad place where the bushes seem to screen the brink of a little precipice; you can see for yourselves that the man we’re tracking must have stumbled at the worst spot he could have picked out to take the dip. Here is where he crashed through the bushes; and look, when I part them with my hands, you can see that there’s a bad drop beyond.”
“Listen!” said Arthur.
“What did you think you heard?” gasped Billy, looking somewhat awed.
“Sounded awfully like a groan!” replied the other solemnly.
CHAPTER V.
A SCOUT AMBULANCE.
All of them crouching there listened eagerly.
“There it comes again!” exclaimed Arthur, excitedly.
“And it is a groan as sure as anything!” added Billy.