With every hour weakness grew on the doctor, his words were fewer. By the ending of the first day, he lay silent looking out at the vista of bluffs and river, his eyes shining in sunken orbits. As dusk fell Courant dropped back to the wagon and asked Daddy John if the mules could hold the pace all night. Susan heard the whispered conference, and in a moment was kneeling on the seat, her hand clutched like a spread starfish on the old man's shoulder.

Courant leaned from his saddle to catch the driver's ear with his lowered tones. "With a forced march we can get there to-morrow afternoon. The animals can rest up and we can make him comfortable and maybe find a doctor."

Her face, lifted to him, was like a transparent medium through which anxiety and hope that was almost pain, shone. She hung on his words and breathed back quick agreement. It would have been the same if he had suggested the impossible, if the angel of the Lord had appeared and barred the way with a flaming sword.

"Of course they can go all night. They must. We'll walk and ride by turns. That'll lighten the wagon. I'll go and get my horse," and she was out and gone to the back of the train where David rode at the head of the pack animals.

The night was of a clear blue darkness, suffused with the misty light of stars. Looking back, Courant could see her upright slenderness topping the horse's black shape. When the road lay pale and unshaded behind her he could decipher the curves of her head and shoulders. Then he turned to the trail in front, and her face, as it had been when he first saw her and as it was now, came back to his memory. Once, toward midnight, he drew up till they reached him, her horse's muzzle nosing soft against his pony's flank. He could see the gleam of her eyes, fastened on him, wide and anxious.

"Get into the wagon and ride," he commanded.

"Why? He's no worse! He's sleeping."

"I was thinking of you. This is too hard for you. It'll wear you out."

"Oh, I'm all right," she said with a slight movement of impatience. "Don't worry about me. Go on."

He returned to his post and she paced slowly on, keeping level with the wheels. It was very still, only the creaking of the wagon and the hoof beats on the dust. She kept her eyes on his receding shape, watched it disappear in dark turns, then emerge into faintly illumined stretches. It moved steadily, without quickening of gait, a lonely shadow that they followed through the unknown to hope. Her glance hung to it, her ear strained for the thud of his pony's feet, sight and sound of him came to her like a promise of help. He was the one strong human thing in this place of remote skies and dumb unfeeling earth.

It was late afternoon when the Fort came in sight. A flicker of animation burst up in them as they saw the square of its long, low walls, crowning an eminence above the stream. The bottom lay wide at its feet, the river slipping bright through green meadows sprinkled with an army of cattle. In a vast, irregular circle, a wheel of life with the fort as its hub, spread an engirdling encampment. It was scattered over plain and bottom in dottings of white, here drawn close in clustering agglomerations, there detached in separate spatterings. Coming nearer the white spots grew to wagon hoods and tent roofs, and among them, less easy to discern, were the pointed summits of the lodges with the bunched poles bristling through the top. The air was very still, and into it rose the straight threads of smoke from countless fires, aspiring upwards in slender blue lines to the bluer sky. They lifted and dispersed the smell of burning wood that comes to the wanderer with a message of home, a message that has lain in his blood since the first man struck fire and turned the dry heap of sticks to an altar to be forever fixed as the soul of his habitation.