"What's that?" Bob asked.
"Either we're not gaining on them any more or we're on a cold trail."
"I don't believe your last guess is right. We've seen too many indications for it to be guess work."
"Then all I've got to say is that they're hiking it some."
They rested for half an hour regretting the loss of time but realizing that it was necessary, and then took up the trail again. They had gone but a short distance when, suddenly a piercing shriek ran out through the forest seemingly but a short distance behind them.
"What was that?" Jack gasped stopping in his tracks.
"I'm not sure but I think it must be a mountain lion. I've read that they yell something like that," Bob told him.
"It sounded to me like a woman yelling."
"I know. That's what makes me think it was a lion."
"Well, here's hoping he isn't on our trail."