Up little Jason went through breaking mist and flashing dew. A wood-thrush sang, and he knew the song came from the bird of which little Mavis was the human counterpart. Woodpeckers were hammering and, when a crested cock of the woods took billowy flight across a blue ravine, he knew him for a big cousin of the little red-heads, just as Mavis was a little cousin of his. Once he had known birds only by sight, but now he knew every calling, twittering, winging soul of them by name. Once he used to draw bead on one and all heartlessly and indiscriminately with his old rifle, but now only the whistle of a bob-white, the darting of a hawk, or the whir of a pheasant's wings made him whirl the old weapon from his shoulder. He knew flower, plant, bush, and weed, the bark and leaf of every tree, and even In winter he could pick them out in the gray etching of a mountain-side--dog-wood, red-bud, "sarvice" berry, hickory, and walnut, the oaks--white, black, and chestnut--the majestic poplar, prized by the outer world, and the black-gum that defied the lightning. All this the dreamy stranger had taught him, and much more. And nobody, native born to those hills, except his uncle Arch, knew as much about their hidden treasures as little Jason. He had trailed after the man of science along the benches of the mountains where coal beds lie. With him he had sought the roots of upturned trees and the beds of little creeks and the gray faces of "rock-houses" for signs of the black diamonds. He had learned to watch the beds of little creeks for the shining tell-tale black bits, and even the tiny mouths of crawfish holes, on the lips of which they sometimes lay. And the biggest treasure in the hills little Jason had found himself; for only on the last day before the rock-pecker had gone away, the two had found signs of another vein, and the geologist had given his own pick to the boy and told him to dig, while he was gone, for himself. And Jason had dug. He was slipping now up the tiny branch, and where the stream trickled down the face of a water-worn perpendicular rock the boy stopped, leaned his rifle against a tree, and stepped aside into the bushes. A moment later he reappeared with a small pick in his hand, climbed up over a mound of loose rocks and loose earth, ten feet around the rock, and entered the narrow mouth of a deep, freshly dug ditch. Ten feet farther on he was halted by a tall black column solidly wedged in the narrow passage, at the base of which was a bench of yellow dirt extending not more than two feet from the foot of the column and above the floor of the ditch. There had been mighty operations going on in that secret passage; the toil for one boy and one tool had been prodigious and his work was not yet quite done. Lifting the pick above his head, the boy sank it into that yellow pedestal with savage energy, raking the loose earth behind him with hands and feet. The sunlight caught the top of the black column above