She put a handful of leaves and twigs on the fire for the sake of more light, and led the way toward the narrowing fissure further back in their retreat. Here she stopped before a great rudely egg-shaped boulder five or six feet through that lay in a shallow depression in the ground. "Our water bottle," said Betty. He supposed that she referred to the depression in the rock floor, since the boulder did not fit in it so exactly as to preclude the possibility of the big rude basin holding water. The word "evaporation" was on his lips when Betty explained. She had hoped to find somewhere a cavity in a rock that would hold their water supply; she had noted this boulder and a flattish place at its top. There her questing fingers had discovered what Kendric's, at her direction, were exploring now. There was a fairly round hole, a couple of inches across. The edges were surprisingly smooth; Kendric could not guess how deep the hole was. "Poke a stick into it," Betty commanded. Obeying, he learned that the hole extended eighteen inches or more. Here was a fairly regular cylinder let into a block of hard rock that would contain something like two quarts of water--certainly enough to keep the life in two people for twenty-four hours. "We'll make a plug to fit into the mouth of it," he said, catching her idea and immediately was as enthusiastic over it as Betty. "And while we're out getting the water we'll find something for straws. There are wild grasses, oats or something that looks like oats, in the cañon." The night was well spent; dawn would come early. And with the dawn, they had no doubt, the mountain trails would fill with Zoraida's men, questing like hounds. Hence Betty and Jim lost no more time in making their trip down the steep slope to the trickle of water. They drank again, lying side by side at a pool. Then Jim filled Betty's "bucket" and they returned to their place of refuge. Kendric arranged the boughs for Betty and made her lie down. By the time he had carved and fitted a plug into their "water bottle" Betty was asleep. CHAPTER XIX HOW ONE WHO HIDES AND WATCHES MAY BE WATCHED BY ONE HIDDEN But Kendric himself did not sleep. He sat by their dead fire and watched the gradual thinning of the darkness about him as the vague light filtered in from the awakening outside world. He looked at Betty sleeping, only to look away with a frown darkening his eyes. She would sleep heavily and long; she would awake refreshed and--hungry. He was hungry already. "It's open and shut," he told himself. "It's up to me to forage." And it was as clear that there was always a risk of being seen as he left their hiding place. That risk would increase as the day brightened. Hence, since he must go, it were best not to tarry. He found in his pocket a stub of pencil and an old envelope. On it he wrote a brief message, placing it on the ground near her outflung hand, laying Bruce's pistol upon it.