and they found themselves not more than a head taller than the Oroid. In this size he seemed to like them better, or at least he stood in far less awe of them, for now he seized them by the arms and pulled them forward vigorously.
They laughingly yielded, and, led by this strange being of another world, they turned from the open places they had been following and plunged into the depths of the forest.
CHAPTER XVIII.
THE CHEMIST AND HIS SON
For an hour or more the three adventurers followed their strange guide in silence through the dense, trackless woods. He walked very rapidly, looking neither to the right nor to the left, finding his way apparently by an intuitive sense of direction. Occasionally he glanced back over his shoulder and smiled.
Walking through the woods here was not difficult, and the party made rapid progress. The huge, upstanding tree-trunks were devoid of limbs for a hundred feet or more above the ground. On some of them a luxuriant vine was growing—a vine that bore a profusion of little gray berries. In the branches high overhead a few birds flew to and fro, calling out at times with a soft, cooing note. The ground—a gray, finely powdered sandy loam—was carpeted with bluish fallen leaves, sometimes with a species of blue moss, and occasional ferns of a like color.
The forest was dense, deep, and silent; the tree branches overhead locked together in a solid canopy, shutting out the black sky above. Yet even in this seclusion the scene remained as light as it had been outside the woods in the open. Darkness indeed was impossible in this land; under all circumstances the light seemed the same—neither too bright nor too dim—a comfortable, steady glow, restful, almost hypnotic in its sameness.
They had traveled perhaps six miles from the point where they met their Oroid guide when suddenly the Very Young Man became aware that other Oroids were with them. Looking to one side, he saw two more of these strange gray men, silently stalking along, keeping pace with them. Turning, he made out still another, following a short distance behind. The Very Young Man was startled, and hurriedly pointed them out to his companions.
"Wait," called the Doctor to their youthful guide, and abruptly the party came to a halt.
By these signs they made their guide understand that they wanted these other men to come closer. The Oroid shouted to them in his own quaint tongue, words of a soft, liquid quality with a wistful sound—words wholly unintelligible to the adventurers.
The men came forward diffidently, six of them, for three others appeared out of the shadows of the forest, and stood in a group, talking among themselves a little and smiling at their visitors. They were all dressed similarly to Lao—for such was the young Oroid's name—and all of them older than he, and of nearly the same height.
"Do any of you speak English?" asked the Doctor, addressing them directly.
Evidently they did not, for they answered only by shaking their heads and by more smiles.
Then one of them spoke. "The Master welcomes his friends," he said. And all the others repeated it after him, like children in school repeating proudly a lesson newly learned.
The Doctor and his two friends laughed heartily, and, completely reassured by this exhibition of their friendliness, they signified to Lao that they were ready again to go forward.
As they walked onward through the apparently endless and unchanging forest, surrounded by what the Very Young Man called their "guard of honor," they were joined from time to time by other Oroid men, all of whom seemed to know who they were and where they were going, and who fell silently into line with them. Within an hour their party numbered twenty or more.
Seeing one of the natives stop a moment and snatch some berries from one of the vines with which many of the trees were encumbered, the Very Young Man did the same. He found the berries sweet and palatable, and he ate a quantity. Then discovering he was hungry, he took some crackers from his belt and ate them walking along. The Doctor and the Big Business Man ate also, for although they had not realized it, all three were actually famished.
Shortly after this the party came to a broad, smooth-flowing river, its banks lined with rushes, with here and there a little spot of gray, sandy beach. It was apparent from Lao's signs that they must wait at this point for a boat to take them across. This they were glad enough to do, for all three had gone nearly to the limit of their strength. They drank deep of the pure river water, laved their aching limbs in it gratefully, and lay down, caring not a bit how long they were forced to wait.
In perhaps another hour the boat appeared. It came from down the river, propelled close inshore by two members of their own party who had gone to fetch it. At first the travelers thought it a long, oblong raft. Then as it came closer they could see it was constructed of three canoes, each about thirty feet long, hollowed out of tree-trunks. Over these was laid a platform of small trees hewn roughly into boards. The boat was propelled by long, slender poles in the hands of the two men, who, one on each side, dug them into the bed of the river and walked with them the length of the platform.
On to this boat the entire party crowded and they were soon well out on the shallow river, headed for its opposite bank. The Very Young Man, seated at the front end of the platform with his legs dangling over and his feet only a few inches above the silver phosphorescence of the rippling water underneath, sighed luxuriously.
"This beats anything we've done yet," he murmured. "Gee, it's nice here!"
When they landed on the farther bank another group of natives was waiting for them. The party, thus strengthened to nearly forty, started off immediately into the forest, which on this side of the river appeared equally dense and trackless.
They appeared now to be paralleling the course of the river a few hundred yards back from its bank. After half an hour of this traveling they came abruptly to what at first appeared to be the mouth of a large cave, but which afterwards proved to be a tunnel-like passageway. Into this opening the party unhesitatingly plunged.
Within this tunnel, which sloped downward at a considerable angle, they made even more rapid progress than in the forest above. The tunnel walls here were perhaps twenty feet apart—walls of a glistening, radiant, crystalline rock. The roof of the passageway was fully twice as high as its width; its rocky floor was smooth and even.
After a time this tunnel was crossed by another somewhat broader and higher, but in general of similar aspect. It, too, sloped downward, more abruptly from the intersection. Into this latter passageway the party turned, still taking the downward course.
As they progressed, many other passageways were crossed, the intersections of which were wide at the open spaces. Occasionally the travelers encountered other natives, all of them men, most of whom turned and followed them.
The Big Business Man, after over an hour of this rapid walking downward, was again near the limit of his endurance, when the party, after crossing a broad, open square, came upon a sort of sleigh, with two animals harnessed to it. It was standing at the intersection of a still broader, evidently more traveled passageway, and in it was an attendant, apparently fast asleep.
Into this sleigh climbed the three travelers with their guide Lao; and, driven by the attendant, they started down the broader tunnel at a rapid pace. The sleigh was balanced upon a broad single runner of polished stone, with a narrow, slightly shorter outrider on each side; it slid smoothly and easily on this runner over the equally smooth, metallic rock of the ground.
The reindeer-like animals were harnessed by their heads to a single shaft. They were guided by a short, pointed pole in the hands of the driver, who, as occasion demanded, dug it vigorously into their flanks.
In this manner the travelers rode perhaps half an hour more. The passageway sloped steeply downward, and they made good speed. Finally without warning, except by a sudden freshening of the air, they emerged into the open, and found themselves facing a broad, rolling stretch of country, dotted here and there with trees—the country of