The rainbow bridge was the one great natural phenomenon, the one grand spectacle, which Shefford had ever seen that did not at first give vague disappointment, a confounding of reality, a disenchantment of contrast with what the mind had conceived.

But this thing was glorious. It silenced him, yet did not awe or stun. His body and brain, weary and dull from the toil of travel, received a singular and revivifying freshness. He had a strange, mystic perception of this rosy-hued stupendous arch of stone, as if in a former life it had been a goal he could not reach. This wonder of nature, though all-satisfying, all-fulfilling to his artist's soul, could not be a resting-place for him, a destination where something awaited him, a height he must scale to find peace, the end of his strife. But it seemed all these. He could not understand his perception or his emotion. Still, here at last, apparently, was the rainbow of his boyish dreams and of his manhood—a rainbow magnified even beyond those dreams, no longer transparent and ethereal, but solidified, a thing of ages, sweeping up majestically from the red walls, its iris-hued arch against the blue sky.

Nas Ta Bega led on down the ledge and Shefford plodded thoughtfully after him. The others followed. A jutting corner of wall again hid the canyon. The Indian was working round to circle the huge amphitheater. It was slow, irritating, strenuous toil, for the way was on a steep slant, rough and loose and dragging. The rocks were as hard and jagged as lava. And the cactus further hindered progress. When at last the long half-circle had been accomplished the golden and rosy lights had faded.

Again the canyon opened to view. All the walls were pale and steely and the stone bridge loomed dark. Nas Ta Bega said camp would be made at the bridge, which was now close. Just before they reached it the Navajo halted with one of his singular actions. Then he stood motionless. Shefford realized that Nas Ta Bega was saying his prayer to this great stone god. Presently the Indian motioned for Shefford to lead the others and the horses on under the bridge. Shefford did so, and, upon turning, was amazed to see the Indian climbing the steep and difficult slope on the other side. All the party watched him until he disappeared behind the huge base of cliff that supported the arch. Shefford selected a level place for camp, some few rods away, and here, with Lassiter, unsaddled and unpacked the lame, drooping mustangs. When this was done twilight had fallen. Nas Ta Bega appeared, coming down the steep slope on this side of the bridge. Then Shefford divined why the Navajo had made that arduous climb. He would not go under the bridge. Nonnezoshe was a Navajo god. And Nas Ta Bega, though educated as a white man, was true to the superstition of his ancestors.

Nas Ta Bega turned the mustangs loose to fare for what scant grass grew on bench and slope. Firewood was even harder to find than grass. When the camp duties had been performed and the simple meal eaten there was gloom gathering in the canyon and the stars had begun to blink in the pale strip of blue above the lofty walls. The place was oppressive and the fugitives mostly silent. Shefford spread a bed of blankets for the women, and Jane at once lay wearily down. Fay stood beside the flickering fire, and Shefford felt her watching him. He was conscious of a desire to get away from her haunting gaze. To the gentle good-night he bade her she made no response.

Shefford moved away into a strange dark shadow cast by the bridge against the pale starlight. It was a weird, black belt, where he imagined he was invisible, but out of which he could see. There was a slab of rock near the foot of the bridge, and here Shefford composed himself to watch, to feel, to think the unknown thing that seemed to be inevitably coming to him.

A slight stiffening of his neck made him aware that he had been continually looking up at the looming arch. And he found that insensibly it had changed and grown. It had never seemed the same any two moments, but that was not what he meant. Near at hand it was too vast a thing for immediate comprehension. He wanted to ponder on what had formed it—to reflect upon its meaning as to age and force of nature, yet all he could do at each moment was to see. White stars hung along the dark curved line. The rim of the arch seemed to shine. The moon must be up there somewhere. The far side of the canyon was now a blank, black wall. Over its towering rim showed a pale glow. It brightened. The shades in the canyon lightened, then a white disk of moon peered over the dark line. The bridge turned to silver, and the gloomy, shadowy belt it had cast blanched and vanished.

Shefford became aware of the presence of Nas Ta Bega. Dark, silent, statuesque, with inscrutable eyes uplifted, with all that was spiritual of the Indian suggested by a somber and tranquil knowledge of his place there, he represented the same to Shefford as a solitary figure of human life brought out the greatness of a great picture. Nonnezoshe Boco needed life, wild life, life of its millions of years—and here stood the dark and silent Indian.

There was a surge in Shefford's heart and in his mind a perception of a moment of incalculable change to his soul. And at that moment Fay Larkin stole like a phantom to his side and stood there with her uncovered head shining and her white face lovely in the moonlight.

“May I stay with you—a little?” she asked, wistfully. “I can't sleep.”

“Surely you may,” he replied. “Does your arm hurt too badly, or are you too tired to sleep?”

“No—it's this place. I—I—can't tell you how I feel.”

But the feeling was there in her eyes for Shefford to read. Had he too great an emotion—did he read too much—did he add from his soul? For him the wild, starry, haunted eyes mirrored all that he had seen and felt under Nonnezoshe. And for herself they shone eloquently of courage and love.

“I need to talk—and I don't know how,” she said.

He was silent, but he took her hands and drew her closer.

“Why are you so—so different?” she asked, bravely.

“Different?” he echoed.

“Yes. You are kind—you speak the same to me as you used to. But since we started you've been different, somehow.”

“Fay, think how hard and dangerous the trip's been! I've been worried—and sick with dread—with—Oh, you can't imagine the strain I'm under! How could I be my old self?”

“It isn't worry I mean.”

He was too miserable to try to find out what she did mean; besides, he believed, if he let himself think about it, he would know what troubled her.

“I—I am almost happy,” she said, softly.

“Fay!... Aren't you at all afraid?”

“No. You'll take care of me.... Do—do you love me—like you did before?”

“Why, child! Of course—I love you,” he replied, brokenly, and he drew her closer. He had never embraced her, never kissed her. But there was a whiteness about her then—a wraith—a something from her soul, and he could only gaze at her.

“I love you,” she whispered. “I thought I knew it that—that night. But I'm only finding it out now.... And somehow I had to tell you here.”

“Fay, I haven't said much to you,” he said, hurriedly, huskily. “I haven't had a chance. I love you. I—I ask you—will you be my wife?”

“Of course,” she said, simply, but the white, moon-blanched face colored with a dark and leaping blush.

“We'll be married as soon as we get out of the desert,” he went on. “And we'll forget—all—all that's happened. You're so young. You'll forget.”

“I'd forgotten already, till this difference came in you. And pretty soon—when I can say something more to you—I'll forget all except Surprise Valley—and my evenings in the starlight with you.”

“Say it then—quick!”

She was leaning against him, holding his hands in her strong clasp, soulful, tender, almost passionate.

“You couldn't help it.... I'm to blame.... I remember what I said.”

“What?” he queried in amaze.

“'YOU CAN KILL HIM!'... I said that. I made you kill him.”

“Kill—whom?” cried Shefford.

“Waggoner. I'm to blame.... That must be what's made you different. And, oh, I've wanted you to know it's all my fault.... But I wouldn't be sorry if you weren't.... I'm glad he's dead.”

“YOU—THINK—I—” Shefford's gasping whisper failed in the shock of the revelation that Fay believed he had killed Waggoner. Then with the inference came the staggering truth—her guiltlessness; and a paralyzing joy held him stricken.

A powerful hand fell upon Shefford's shoulder, startling him. Nas Ta Bega stood there, looking down upon him and Fay. Never had the Indian seemed so dark, inscrutable of face. But in his magnificent bearing, in the spirit that Shefford sensed in him, there were nobility and power and a strange pride.

The Indian kept one hand on Shefford's shoulder, and with the other he struck himself on the breast. The action was that of an Indian, impressive and stern, significant of an Indian's prowess.

“My God!” breathed Shefford, very low.

“Oh, what does he mean?” cried Fay.

Shefford held her with shaking hands, trying to speak, to fight a way out of these stultifying emotions.

“Nas Ta Bega—you heard. She thinks—I killed Waggoner!”

All about the Navajo then was dark and solemn disproof of her belief. He did not need to speak. His repetition of that savage, almost boastful blow on his breast added only to the dignity, and not to the denial, of a warrior.

“Fay, he means he killed the Mormon,” said Shefford. “He must have, for I did not!”

“Ah!” murmured Fay, and she leaned to him with passionate, quivering gladness. It was the woman—the human—the soul born in her that came uppermost then; now, when there was no direct call to the wild and elemental in her nature, she showed a heart above revenge, the instinct of a saving right, of truth as Shefford knew them. He took her into his arms and never had he loved her so well.

“Nas Ta Bega, you killed the Mormon,” declared Shefford, with a voice that had gained strength. No silent Indian suggestion of a deed would suffice in that moment. Shefford needed to hear the Navajo speak—to have Fay hear him speak. “Nas Ta Bega, I know I understand. But tell her. Speak so she will know. Tell it as a white man would!”

“I heard her cry out,” replied the Indian, in his slow English. “I waited. When he came I killed him.”

A poignant why was wrenched from Shefford. Nas Ta Bega stood silent.

“BI NAI!” And when that sonorous Indian name rolled in dignity from his lips he silently stalked away into the gloom. That was his answer to the white man.

Shefford bent over Fay, and as the strain on him broke he held her closer and closer and his tears streamed down and his voice broke in exclamations of tenderness and thanksgiving. It did not matter what she had thought, but she must never know what he had thought. He clasped her as something precious he had lost and regained. He was shaken with a passion of remorse. How could he have believed Fay Larkin guilty of murder? Women less wild and less justified than she had been driven to such a deed, yet how could he have believed it of her, when for two days he had been with her, had seen her face, and deep into her eyes? There was mystery in his very blindness. He cast the whole thought from him for ever. There was no shadow between Fay and him. He had found her. He had saved her. She was free. She was innocent. And suddenly, as he seemed delivered from contending tumults within, he became aware that it was no unresponsive creature he had folded to his breast.

He became suddenly alive to the warm, throbbing contact of her bosom, to her strong arms clinging round his neck, to her closed eyes, to the rapt whiteness of her face. And he bent to cold lips that seemed to receive his first kisses as new and strange; but tremulously changed, at last to meet his own, and then to burn with sweet and thrilling fire.

“My darling, my dream's come true,” he said. “You are my treasure. I found you here at the foot of the rainbow!... What if it is a stone rainbow—if all is not as I had dreamed? I followed a gleam. And it's led me to love and faith!”

. . . . . . . . . . .

Hours afterward Shefford walked alone to and fro under the bridge. His trouble had given place to serenity. But this night of nights he must live out wide-eyed to its end.

The moon had long since crossed the streak of star-fired blue above and the canyon was black in shadow. At times a current of wind, with all the strangeness of that strange country in its hollow moan, rushed through the great stone arch. At other times there was silence such as Shefford imagined dwelt deep under this rocky world. At still other times an owl hooted, and the sound was nameless. But it had a mocking echo that never ended. An echo of night, silence, gloom, melancholy death, age, eternity!

The Indian lay asleep with his dark face upturned, and the other sleepers lay calm and white in the starlight.

Shefford saw in them the meaning of life and the past—the illimitable train of faces that had shone the stars. There was a spirit in the canyon, and whether or not it was what the Navajo embodied in the great Nonnezoshe, or the life of this present, or the death of the ages, or the nature so magnificently manifested in those silent, dreaming waiting walls—the truth for Shefford was that this spirit was God.

Life was eternal. Man's immortality lay in himself. Love of a woman was hope—happiness. Brotherhood—that mystic and grand “Bi Nai!” of the Navajo—that was religion.