"It doesn't make any difference what their motive is, sir," answered Tad. "The fact remains that some one is trying to get us and we must look lively or they will pink one or more of us. Get up, Stacy! You are all right. Lead your pony in here while I take an observation."
Tad mounted his own horse and galloped along at the base of the rocks, well shielded from any one who might be hiding further back in the mountains. The Pony Rider Boy's mind was working rapidly. He was forming a plan of campaign. He was inclined to agree with the theory of Professor Zepplin. Still, theories would not help them at this critical moment. They must protect themselves and at once if they expected to get out alive. One course was plainly open to them. They could mount their ponies and ride out over the plains at a gallop and perhaps escape. However, this plan was rather risky. Besides, Tad did not like the idea of running away.
"No, we've got to do something else," he declared out loud. "I have it!" The boy brought his pony up standing and gazed off over the plain to a point about a quarter of a mile beyond, where the plain rolled into a hollow, a "hog hollow" as it was called down there.
Butler galloped back to where his companions were standing anxiously awaiting him.
"We are wasting time, Tad," cried the professor as the lad rode up. "It is my opinion that we had better ride into that canyon there and make camp in some secluded spot where we shall not be easily found."
"I am afraid that won't help us any, Professor," said Tad. "How could we expect to hide ourselves in there so completely that a mountaineer would not find us? No, sir, it is my opinion that our only safety lies out there in the open, at least for the rest of the afternoon and the night."
"What, ride out there to be shot up again?" demanded Stacy. "No, sir, not for Stacy Brown! I've been shot up once. I don't propose to make a bull's-eye of myself again."
"Stacy is right, boys. It would be foolishness to follow such a course and—-"
"Wait till you hear my plan, sir," urged Butler.
"We will hear it. Proceed."