on," put in Fred. "Supposing those men on the ranch come after us? We can't get away very well on foot, and, if we could, we wouldn't want to leave the horses behind." And so it was decided to go slowly and take the steeds along.
It was growing dark, and they were afraid they were in for another storm. So far, there had been no breeze, but now the wind began to rush through the trees with a mournful sound.
"If it does come, it will surely be a soaker," announced Tom when he got to an opening where he could survey the sky. "Perhaps it will pay us to stay in the shelter of the forest."
"Yes, and have the lightning bring a tree down on us," added Fred. "None of that for me."
They were still among the rocks when it began to rain. At first, the drops did not reach them, but, as the storm increased, the water began to fall in all directions from the branches.
"We must find some shelter, unless we want to be soaked," said Fred. "Hullo, just the thing! Couldn't be any better if we had it made to order."
He pointed to a spot where the rocks arose to a height of twenty or more feet. Low down was an opening leading to a hollow that was very like a cave.
