For the first mile the tunnel had to be driven through solid granite. Then the way led through adobe hills, so soft that the sagging walls were a constant menace. Not until six workmen had died at the job was the adobe finally sealed with concrete. After the adobe came sand, spring riddled. More rough-necks gave up their lives fighting the gushing floods and falling walls, until at last the tunnel emerged into the open foothills of the valley.

During all this time, the men for whom Jim had spent his first savings stayed solidly by him, save those whom death called out. After the camp in the canyon was built, many of them, including Henderson, developed unsuspected families and Jim became godfather to several namesakes. After the road was finished, however, old Suma-theek had to take his braves back to the Apache country. They did not like the work in the tunnel, and it was several years before Jim saw his old friend again.

Uncle Denny and Jim's mother came out to visit him, his second summer on the dam, and they enjoyed their visit so much that it became a yearly custom.

Jim's mother, with a mother's wisdom, never spoke of Pen to Jim except casually, of her health or of Sara's effort to carry on real estate business through Pen and his father. On the first visit Uncle Denny undertook to tell Jim of how the accident had developed all the latent ugliness of Sara's character and of his heavy demands on Penelope's strength and time. And he told Jim how Pen's girlishness had disappeared, leaving behind a woman so sweet, so patient, so sadly wise, that Uncle Denny could not speak of her without his voice breaking.

But Uncle Denny never repeated this recital, for before he had finished, Jim, white-lipped, had said hoarsely, "Uncle Denny, I can't stand it! I can't!" and had rushed off into the desert night.

Even Uncle Denny could not know, as Iron Skull who had lived with him for the past years knew, of Jim's silent anguish in the loss of Penelope. There was a little picture of Pen in tennis clothes at sixteen that always was pinned to Jim's tent wall. Once in a while when Iron Skull found him looking at it, Jim would tell him of Pen's beauty. But other than this he never mentioned her name to anyone.

Under the excitement of what Uncle Denny told him, Jim wrote a note to Pen:

"Dear little Pen: This desert country claims one's soul as well as one's body. It is as big as the hand of God. If life gets too much for you in New York, come to me here, and I will show you and the desert to each other.

Jim."

And though Pen did not answer the note she carried it next her heart for many a day.