The mestizo was off his horse, standing close to the ashes of a fire which had evidently been out for some hours. They were all of the opinion that Terry and Jim had built the fire and had spent the night beside it.

“The question is now where they went from here,” mused the professor.

Ned was searching the nearby bushes and he set up a shout. “There were others here last night, too,” he announced.

Upon inspection they found the bushes beaten down by the hoofs of horses, but at first Don was not convinced. “This is probably where they tied up their own horses,” he said.

“Other horse over here,” replied the mestizo, gravely.

On the other side of the clearing they found the traces of other horses. There had been two parties, or else one spot marked the location of the missing boys’ horses and the other that of the second party. The professor was sure that Sackett and his men had come down on them in the night while they slept. And later all doubt was laid aside when Ned found a big foot print in the soft sand.

“Neither Jim nor Terry made that,” he said, with conviction.

The others agreed with him, and by careful tracing they found that the party had gone down the mountain toward the sea. They followed the trail for at least a half mile and then lost it on some rocky ground, but they were satisfied that they were on the right track.

“They are heading for the sea,” Ned said. “Perhaps they have some kind of a boat down there. Well, we might as well get right on the trail.”

“Looks like a bad storm coming up,” cried Don.