"Have some lake," he suggested. "You have no idea how satisfying it is if you take enough of it."

After the girls had drunk the three set off again, led by Smith, in search of the opening to the fissure. "I know just where it is," he had assured them the night before, and even now he thought that he would have little difficulty in finding it, but when they approached the base of the cliff at the point where he had expected to find it it was not there.

Along the foot of the beetling escarpment he searched, almost frantically now, but there was no sign of the opening through which he had crawled into the valley of the land of Midian. Finally, crushed, he faced Lady Barbara. "I cannot find it," he admitted, and there was a quality of hopelessness in his voice that touched her.

"Never mind," she said. "It must be somewhere. We shall just have to keep searching until we find it."

"But it's so hard on you young ladies," he said. "It must be a bitter disappointment to you. You don't know how it makes me feel to realize that, with no one to depend on but me, I have failed you so miserably."

"Don't take it that way, please," she begged. "Anyone might have lost his bearings in this hole. These cliffs scarcely change their appearance in miles."

"It's kind of you to say that, but I cannot help but feel guilty. Yet I know the opening cannot be far from here. I came in on the west side of the valley, and that is where we are now. Yes, I'm sure I must find it eventually; but there is no need for all of us to search. You and Jezebel sit down here and wait while I look for it."

"I think we should remain together," suggested Jezebel.

"By all means," agreed Lady Barbara.

"As you wish," said Smith. "We will search toward the north as far as it is possible that the opening can lie. If we don't find it we can come back here and search toward the south."