"And then he will march back here?" she demanded.

"Not easily. I am afraid, my dear cousin, not very easily. There would be canons to turn, and long ones. Probably he would strike for the Moqui country."

"Across the desert? No water!"

Coronado shrugged his shoulders as if to say that he could not help it.

"If we go back to-morrow," she began again, "do you think we shall overtake them?"

"I think it very probable," lied Coronado.

"And if we don't overtake them, will they join us at the Moqui pueblos?"

"Yes, yes. I have little doubt of it."

"When do you think we ought to start?"

"To-morrow morning."

"Won't that be too early?"

"Day after to-morrow then."

"Won't that be too late?"

Coronado nearly boiled over with rage. This girl was going to demand impossibilities of him, and impossibilities that he would not perform if he could. He must be here and he must be there; he must be quick enough and not a minute too quick; and all to save his rival from the pit which he had just dug for him. Turning his back on Clara, he paced the roof of the Casa in an excitement which he could not conceal, muttering, "I will do the best I can--the best I can."

Presently the remembrance that he had at least gained one great triumph enabled him to recover his self-possession and his foxy cunning.

"My dear cousin," he said gently, "you must not suppose that I am not greatly afflicted by this accident. I appreciate the high merit of Lieutenant Thurstane, and I grieve sincerely at his misfortune. What can I do? I will do the best I can for all. Trusting to your good sense, I will do whatever you say. But if you want my advice, here it is. We ought for our own sakes to leave here to-morrow; but for his sake we will wait a day. In that time he may rejoin us, or he may regain the Moqui trail. So we will set out, if you have no objection, on the morning of day after to-morrow, and push for the pueblos. When we do start, we must march, as you know, at our best speed."

"Thank you, Coronado," said Clara. "It is the best you can do."

There were not five minutes during that day and the next that the girl did not look across the plain to the gorge of the dry canon, in the hope that she might see Thurstane approaching. At other times she gazed eagerly down the San Juan, although she knew that he could not stem the current. Her love and her sorrow were ready to believe in miracles. How is it possible, she often thought, that such a brief sweep of water should carry him so utterly away? In spite of her fear of vexing Coronado, she questioned him over and over as to the course of the stream and the nature of its banks, only to find that he knew next to nothing.

"It will be hard for him to return to us," the man finally suggested, with an air of being driven unwillingly to admit it. "He may have to go on a long way down the river."

The truth is that, not knowing whether the lost men could return easily or not, he was anxious to get away from their neighborhood.

Before the second day of this suspense was over, Aunt Maria had begun to make herself obnoxious. She hinted that Thurstane knew what he was about; that the river was his easiest road to his station; that, in short, he had deserted. Clara flamed up indignantly and replied, "I know him better."

"Why, what has he got to do with us?" reasoned Aunt Maria. "He doesn't belong to our party."

"He has his men here. He wouldn't leave his soldiers."

"His men! They can take care of themselves. If they can't, I should like to know what they are good for. I think it highly probable he went off of his own choice."

"I think it highly probable you know nothing about it," snapped Clara.

"You are incapable of judging him."

The girl was not just now herself. Her whole soul was concentrated in justifying, loving, and saving Thurstane; and her manner, instead of being serenely and almost lazily gentle, was unpleasantly excited. It was as if some charming alluvial valley should suddenly give forth the steam and lava of a volcano.

Finding no sympathy in Aunt Maria, and having little confidence in the good-will of Coronado, she looked about her for help. There was Sergeant Meyer; he had been Thurstane's right-hand man; moreover, he looked trustworthy. She seized the first opportunity to beckon him up to her eerie on the roof of the Casa.

"Sergeant, I must speak with you privately," she said at once, with the frankness of necessity.

The sergeant, a well-bred soldier, respectful to ladies, and especially to ladies who were the friends of officers, raised his forefinger to his cap and stood at attention.

"How came Lieutenant Thurstane to go down the river?" she asked.

"It was the lariat proke," replied Meyer, in a whispering, flute-like voice which he had when addressing his superiors.

"Did it break, or was it cut?"

The sergeant raised his small, narrow, and rather piggish gray eyes to hers with a momentary expression of anxiety.

"I must pe gareful what I zay," he answered, sinking his voice still lower. "We must poth pe gareful. I examined the lariat. I fear it was sawed. But we must not zay this."

"Who sawed it?" demanded Clara with a gasp.

"It was no one in the poat," replied Meyer diplomatically.

"Was it that man--that hunter--Smith?"

Another furtive glance between the sandy eyelashes expressed an uneasy astonishment; the sergeant evidently had a secret on his mind which he must not run any risk of disclosing.

"I do not zee how it was Schmidt" he fluted almost inaudibly. "He was watching the peasts at their basture."

"Then who did saw it?"

"I do not know. I do not feel sure that it was sawed."

Perceiving that, either from ignorance or caution, he would not say more on this point, Clara changed the subject and asked, "Can Lieutenant Thurstane go down the river safely?"

"I would like noting petter than to make the exbedition myself," replied Meyer, once more diplomatic.

Now came a silence, the soldier waiting respectfully, the girl not knowing how much she might dare to say. Not that she doubted Meyer; on the contrary, she had a perfect confidence in him; how could she fail to trust one who had been trusted by Thurstane?

"Sergeant," she at last whispered, "we must find him."

"Yes, miss," touching his cap as if he were taking an oath by it.

"And you," she hesitated, "must protect _me_."

"Yes, miss," and the sergeant repeated his gesture of solemn affirmation.

"Perhaps I will say more some time."