great cavern!
Gripping the edge of the rock ledge he dragged himself up as both Wabigoon and Mukoki had done, and found his feet upon a soft floor of sand. Suddenly he felt a hand clutch his arm. A half-shout, rising faintly above the wash of the cataract, sounded in his ear.
"Look!"
He wiped the water from his eyes and gazed ahead of him. For a moment he saw nothing. Then, so faintly that at first it appeared no larger than a star, he caught the faint glimmer of a light. As he looked it became more and more distinct, and to his astonishment he saw that it was slowly rising, like a huge will-o'-the-wisp that had suddenly risen from the floor of the cavern to float off into the utter blackness of space above. And even as he stared, gripping Wabi's arm in his excitement, the strange light began to descend, and quickly disappeared!
The two boys saw Mukoki slip off into the gloom, and without questioning his motive they followed close behind. As they progressed the sound of the fall came more and more faintly to their ears. A blackness deeper than the gloom of the darkest night environed them, and the three now held to one another's arms. Rod understood why his companions lighted no torches. Somewhere ahead of them was another light, carried by the mad hunter. His blood thrilled with excitement. Where would John Ball lead them?
Suddenly he became conscious that they were no longer walking on a level floor of sand but that they were ascending, as the light had done. Mukoki stopped and for a full minute they stood and listened. The tumult of the fall came to them in a far, subdued murmur. Beyond that there was not the breath of a sound in the strange world of gloom about them. They were about to start on again when something held them, a whispering, sobbing echo, and Rod's heart seemed to stop its beating. It died away slowly, and a weird stillness fell after it. Then came a low moaning cry, a cry that was human in its agony, and yet which had in it something so near the savage that even Wabigoon found himself trembling as he strained in futile effort to pierce the impenetrable gloom ahead. Before the cry had lost itself in the distances of the cavern Mukoki was leading them on again.
Step by step they followed in the path taken by the strange light. Rod knew that they were climbing a hill of sand, and that just beyond it they would see the light again, but he was not prepared for the startling suddenness with which the next change came. As if a black curtain had dropped from before their eyes the three adventurers beheld a scene that halted them in their tracks. A hundred paces away a huge pitch-pine torch a yard in length was burning in the sand, and crouching in the red glow of this, his arms stretched out as if in the supplication of a strange prayer, was John Ball! Just beyond him was the gleam of water, inky-black in the weird flickerings of the torch, and toward this John Ball reached out in his grief. His voice came up softly to the three watchers now, so low that even in the vast silence of the cavern it could barely be heard. To Roderick Drew it was as if the strange creature below him was sobbing like a heart-broken child, and he whispered in Wabigoon's ear. Then, foot by foot, so gently that his moccasined feet made no sound, he approached the madman.
Half-way to him he paused.
"Hello, John Ball!" he called softly.
The faint light of the torch was falling upon him, and he advanced another step. The murmuring of the wild man ceased, but he made no movement. He still knelt in his rigid posture, his arms stretched toward the black chaos beyond him. Rod came very close to him before he spoke again.
"Is that you, John Ball?"
Slowly the kneeling figure turned, and once more Rod saw in those wild eyes, gleaming brightly now in the torch-light, the softer, thrilling glow of recognition and returning reason. He reached out his own arms and advanced boldly, calling John Ball's name, and the madman made no retreat but crouched lower in the sand, strange, soft sounds again falling from his lips. Rod had come within half a dozen feet of him when he sprang up with the quickness of a cat, and with a wailing cry plunged waist deep into the water. With his arms stretched entreatingly into the mysterious world beyond the torch-light he turned his face to the white youth, and Rod knew that he was trying as best he could to tell him something.
"What is it, John Ball?"
He went to the edge of the black water and waded out until it rose to his knees, his eyes staring into the blackness.
"What is it?"
He, too, pointed with one arm, and the madman gave an excited gesture. Then he placed his hands funnel-shaped to his mouth, as Rod had often seen Wabi and Mukoki do when calling moose, and there burst from him a far-reaching cry, and Rod's heart gave a sudden bound as he listened, for the cry was that of a woman's name!
"Dol—o—res-s-s-s—Dol—o—res-s-s-s—"
The cry died away in distant murmuring echoes, and with an answering cry Rod shouted forth the name which he fancied John Ball had spoken.
"Dolores! Dolores! Dolores!"
There came a sudden leaping plunge, and John Ball was at his feet, clasping him about the knees, and sobbing again and again that name—Dolores. Rod put his arms about the old man's shoulders, and the gray, shaggy head fell against him. The sobbing voice grew lower, the weight of the head greater, and after a little Rod called loudly for Mukoki and Wabigoon, for there was no longer movement or sound from the form at his feet, and he knew that something had happened to John Ball. The two Indians were quickly at his side, and together they carried the unconscious form of Ball within the circle of torch-light. The old man's eyes were closed, his claw-like fingers were clenched fiercely upon his breast, and not until Mukoki placed a hand over his heart did the three know that he was still breathing.
"Now is our time to get him to camp," said Wabi. "Lead the way with the torch, Rod!"
There was not much weight to John Ball, and the two Indians carried him easily. At the fall the rubber blanket was wound about his head and the adventurers plunged under the cataract with their burden. It was an hour after that before the old man opened his eyes again. Rod was close beside him and for a full minute the mad hunter gazed up into his face, then once more he sank off into that strange unconsciousness which had overcome him in the cavern. Rod rose white-faced and turned to Mukoki and Wabigoon.
"I'm afraid—he's dying," he said.
The Indians made no answer. For several minutes the three sat silently about John Ball watching for signs of returning consciousness. At last Mukoki roused himself to take a pot of soup from the fire. The movement seemed to stir John Ball into life, and Rod was at his side again, holding a cup of water to his lips. After a little he helped the old man to sit up, and a spoonful at a time the warm soup was fed to him.
Through the whole of that day he returned to consciousness only for brief intervals, lapsing back into a death-like sleep after each awakening. During one of these periods of unconsciousness Wabi cut short the tangled beard and hair, and for the first time they saw in all its emaciation the thin, ghastly face of the man who, half a century before, had drawn the map that led them to the gold. There was little change in his condition during the night that followed, except that now and then he muttered incoherently, and at these times Rod always caught in his ravings the name that he had heard in the cavern. The next day there was no change. And there was still none on the third. Even Mukoki, who had tried every expedient of wilderness craft in nursing, gave up in despair. So far as they could see John Ball had no fever. Yet three-quarters of the time he lay as if dead. Nothing but soup could be forced between his lips.
On the second day Wabi revisited the subterranean world beyond the cataract. When he came back he had discovered the secret of the treasure in the pool. The gold came from the cavern. The soft sand through which they had followed the strange light was rich in dust and nuggets. During the floods of spring water
