"You'll hardly be startin' back to-morrow, will you, Burt?" "To-morrow? No, nor the next day." There was a hard ring in Bruce's voice. "I've changed my mind. I'm going outside! I'm going to Bartlesville, Indiana, to see Sprudell!" "Good!" enthusiastically. "And if you has cause to lick that pole kitty hit him one for me." Wilbur Dill, who had not expected to close his eyes, was sleeping soundly, while Bruce in the adjoining room, who had looked forward to a night of rest in a real bed, was lying wide awake staring into the dark. His body was worn out, numb with exhaustion, but his mind was unnaturally alert. It refused to be passive, though it desperately needed sleep. It was active with plans for the future, with speculation concerning Sprudell, with the rebuilding of the air castles which had fallen with his failure to find mail. In the restless days of waiting for Toy to get well enough to leave alone for a few days while he went up to Ore City for mail and provisions, a vista of possibilities had unexpectedly opened to Bruce. He was standing one morning at the tiny window which overlooked the river, starting across at Big Squaw creek, with its cascades of icicles pendant from its frozen mouth. What a stream Big Squaw creek was, starting as it did all of thirty miles back in the unknown hills, augmented as it came by trickling rivulets from banks of perpetual snow and by mountain springs, until it grew into a roaring torrent dashing itself to whiteness against the green velvet boulders, which in ages past had crashed through the underbrush down the mountainside to lie forever in the noisy stream! And the unexpected fern-fringed pools darkened by overhanging boughs, under which darted shadows of the trout at play--why he had thought, if they had Big Squaw creek back in Iowa, or Nebraska, or Kansas, or any of those dog-gone flat countries where you could look further and see less, and there were more rivers with nothing in them than any other states in the Union, they'd fence it off and charge admission. They'd--it was then the idea had shot into his mind like an inspiration--they'd _harness_ Big Squaw creek if they had it back in Iowa, or Nebraska, or Kansas, and make it work! They'd build a plant and develop power! The method which had at once suggested itself to Sprudell was slow in coming to Bruce because he was unfamiliar with electricity. In the isolated districts where he had lived the simpler old-fashioned, steam-power had been employed and his knowledge of water-power was chiefly from reading and hearsay.