"Isn't it about time you made a start at getting that boulder out?" said Brooke, drily.

Jimmy retired unwillingly, and Brooke glanced deprecatingly at his guests. "We have been comrades for several years," he said.

"Of course!" said Mrs. Devine, with a little smile. "Still, I really don't think you need be so anxious to hide the fact that you have taken some pains to provide these little dainties for us. It would have been apparent in any case. We know how men live in the bush."

Brooke made no disclaimer, though a faint trace of color deepened the bronze in his face, for he remembered the six thousand dollars, and winced under her graciousness. Then they discussed other matters, until at last Barbara laid aside her cup.

"We came to see the cañon, and how you mean to put the rope across," she said.

She glanced at her sister, but Mrs. Devine resolutely shook her head. "I have seen quite as much of the cañon as I have any wish to do," she said. "Besides, it was not exactly an easy matter getting down here, and I expect it will be considerably worse getting up. You can go with Mr. Brooke, my dear."

They left her in the tent, and five minutes later Brooke led the girl to a seat on a dizzy ledge, from which the rock fell away in one awful smooth wall.

"Now," he said quietly, "you can look about you."

Barbara, who had been too occupied in picking her way to notice very much as yet, drew in her breath as she gazed down into the tremendous chasm. The sunshine lay warm upon the pine-clad slopes above, but no ray of brightness streamed down into that depth of shadow, and its eerie dimness was thickened by the mist which drifted filmily above the river's turmoil. Out of it a deep vibratory roar came up, diminished by the distance, in long pulsations that died far up among the pines in sinking waves of sound.

"Oh," she said, with a little gasp, "it's tremendous!"