"You saw her last," said Barney. The time had come to have it out with this man. "You saw her last. She was in your cave in the mountain. We found her jacket there, and beside the spring this dog lay senseless. What became of her?"
Nu stood with an expression of dull incomprehension upon his fine features. It was as though he had received a stunning blow.
"She was there?" he said at last in a low voice. "She was there in my cave and I thought it was but a dream. She has gone away, and for many days I have remained here doing nothing while she roams amidst the dangers of the forest alone and unprotected. Unless," his tone became more hopeful, "she has found her way back to our own people among the caves beside the Restless Sea. But how could she? Not even I, a man and a great hunter, can even guess in what direction lies the country of my father, Nu. Perhaps you can tell me?"
Barney shook his head. His disappointment was great. He had been sure that Nu could cast some light upon the whereabouts of Victoria. He wondered if the man was telling him the truth. Doubts began to assail him. It seemed scarce credible that Victoria could have been in the fellow's lair without his knowing of her presence. That she had been there there seemed little or no doubt. The only other explanation was that Nu had, as Curtiss had suggested, stolen her from the vicinity of the bungalow, killed her, and taken his spear and her coat back to his cave with him; but that did not account for the presence of the hound or the beast's evident loyalty to the man.
Nu had turned from the veranda and entered the bungalow. Barney followed him. The cave man was hunting about the house for something.
"What are you looking for?" asked the American.
"My spear," replied Nu.
"What do you want of it?"
"I'm going to find Nat-ul."
Barney laid a hand upon the other's arm.