He then started, Charley and Doctor Dan following behind.
Dick threw the bridle down on the horse’s neck and the sure-footed little mustang walked straight toward the entrance of the canyon, but instead of turning into it, kept on under the cliffs.
“Hello! It seems they didn’t come the way you thought they did after all!” exclaimed Doctor Dan; “probably there is another canyon just beyond here and——”
“Gee! There it comes again!” broke out Charley, pointing off on the lake.
The water had begun a furious commotion close to the shore.
Dick stopped the horse and all remained staring at it for a minute or more, but as yet nothing appeared.
CHAPTER X.
EXPLORING AROUND THE LAKE.
If Dick and Doctor Dan expected to see a new monster come up out of the lake that was the time they got left.
Charley said from the first that nothing was coming and he was right.
“It’s not old P. D.,” he declared; “that isn’t the way he boils the pot.”