“Look!” he cried, pointing to the space between the marks. “There have been horses along here.”
“Sure, we rode there,” said Jerry.
“No we didn’t!” said Bob, quickly. “We came over that way,” and he pointed to the left. “We haven’t ridden here at all. Those are strange horses.”
“Maybe you’re right,” Jerry admitted.
“I know I am!” Bob retorted.
An examination of the impressions left by the strange horses showed them to be unlike those made by the steeds the Motor Boys rode.
“Well, now that’s settled,” observed Jerry, “let’s keep on following the trail. We must find out what it all means.”
The queer marks went on for a little distance farther, and then were lost once more, at the edge of a stretch of ground so hard and rocky that it would have taken a small locomotive, running along without a track, to have made an impression.
“Nothing doing here,” said Jerry. “The mystery deepens.”