As for Van Emmon, his experience will have to be classed with Smith's. That is to say, he soon came to feel that his agent was not what is commonly called human. It was all too different. However, he found himself enjoying a field of view which was a decided improvement upon Smith's. Instead of a range which began and ended just above the horizon, his agent possessed the power of looking almost straight ahead.

This told the geologist that his unsuspecting Sanusian was located in an aircraft much like the other. The same tremendous noise of the engine, the same inexplicable wing action, together with the same total lack of the usual indications of human occupancy, all argued that the two men had hit upon the same type of agent. In Van Emmon's case, however, he could occasionally glimpse two loose parts of the machine, flapping and swaying oddly from time to time within the range of the observer, and at the front. Nothing was done about it. Van Emmon came to the same conclusion as Smith; the operator was looking into something like a periscope. Perhaps he himself did not do the driving.

From what the geologist could see of the country below, it was quite certainly cultivated. In no other way could the even rows and uniform growth be explained; even though Van Emmon could not say whether the vegetation were tree, shrub, or plant, it was certainly the work of man —or something mightily like man.

Shortly he experienced an abrupt downward dive, such as upset his senses somewhat. When he recovered, he had time for only the swiftest glance at what, he thought rather vaguely, was a great green-clad mountain. Then his agent brought the craft to one of those nerve-racking stops; once more came a swimming of the brain, and then the geologist saw something that challenged his understanding.

The craft had landed on the rim of a deep pit, or what would have been called a pit if it had not been so extraordinary. Mainly the strangeness was a matter of color; the slope was of a brilliant orange, and seemingly covered with frost, for it sparkled so brightly in the sun as to actually hurt the eyes. In fact, the geologist's first thought was "A glacier," although he could not conceive of ice or snow of that tint.

Running down the sides of the pit were a number of dark-brown streaks, about a yard wide; Van Emmon could make them out, more or less clearly, on the other side of the pit as well. From the irregular way in which the walls were formed, he quickly decided that the pit was a natural one. The streaks, he thought, might have been due to lava flow.

His agent proceeded to drive straight over the rim and down the slope into the pit. His engine was quite stopped; like Smith, the geologist wondered just how the craft's wheels were operated. Next he was holding his breath as the machine reached so steep a point in the slope that, most surely, no brakes could hold it. Simultaneously he heard the hiss and whine which seemed to indicate the suction device.

"It was a whole lot like going down into a placer mine," the geologist afterward said; and in view of what next met his eyes, he was justified in his guess.

Down crept the machine until it was "standing on its nose." The sun was shining almost straight down into the slope, and Van Emmon forgot his uneasiness about the craft in his interest in what he saw.

The bottom of the pit was perhaps twenty feet in diameter, and roughly hemispherical. Standing up from its bottom were half a dozen slim formations, like idealized stalagmites; they were made of some semitransparent rock, apparently, the tint being a reddish yellow. Finally, perched on the top of each of these was a stone; and surrounding these six "landmarks," as Van Emmon called them, was the most prodigious display of wealth imaginable.

For the whole queer place was simply sprinkled with gold. Gold—gold everywhere; large nuggets of it, as big as one's fist! Not embedded in rock, not scattered through sand, but lying LOOSE upon the surface of that unbelievable orange snow! It was overwhelming.

The mysterious Sanusian lost no time. Operating some unseen machinery, he caused three shovel-like devices to project from the front of his machine; and these instantly proceeded, so swiftly that Van Emmon could not possibly watch their action, to pick up nuggets and stow them away out of sight in what must have been compartments in the hull. All this was done without any sound beyond the occasional thud of a nugget dropped in the scramble.

Suddenly the Sanusian wheeled his machine about and started hurriedly up the slope. Van Emmon judged that the chap had been frightened by something, for he took flight as soon as he reached the top of the pit. And—he left half a million in gold behind him!

This new flight had not lasted two minutes before the geologist began to note other objects in the air. There were birds, so distant that he could not identify them; one came near enough, however, for him to conclude that it was a hawk. But he did not hold to this conclusion very long.

The thing that changed his mind was another aircraft. It approached from behind, making even more noise than the other, and proceeded to draw abreast of it. From time to time Van Emmon's agent turned his mysterious periscope so as to take it all in, and the geologist was able to watch his fill. Whereupon he became converted to a new idea:

The birds that Smith and he had seen had not been birds at all, but aircraft built in imitation of them.

For this new arrival had been made in almost perfect imitation of a bee! It was very close to an exact reproduction. For one exception, it did not have the hairy appearance so characteristic of bees; the body and "legs" were smooth, and shiny. (Later, Van Emmon saw machines which went so far as even to imitate the hairs.) Also, instead of trying to duplicate the two compound eyes which are found, one on each side of a bee's head, a perfectly round representation of a single eye was built, like a conning tower, toward the front of the bow. Presumably, the observer sat or stood within this "head."

But otherwise it was wonderfully like a drone bee. Van Emmon was strongly reminded of what he had once viewed under a powerful lens. The fragile semitransparent wings, the misshapen legs, and even the jointed body with its scale-like segments, all were carefully duplicated on a large scale. Imagine a bee thirty feet long!

At first the geologist was puzzled to find that it carried a pair of many-jointed antennae. He could not see how any intelligent being would make use of them; they were continually waving about, much as bees wave theirs. Evidently these were the loose objects he had already noted. "Now," he wondered, "why in thunder did the builders go to so much trouble for the sake of mere realism?"

Then he saw that the antennae served a very real purpose. There was no doubt about it; they were wireless antennae!

For presently the newcomer, who so far had not shown himself at any point on his machine, sent out a message which was read as quickly as it was received by Van Emmon's agent, and as unconsciously translated:

"Number Eight Hundred Four, you are wanted on Plot Seventeen."

Whereupon Van Emmon's unknown assistant replied at once:

"Very well, Superior."

It was done by means of an extremely faint humming device, reminding the geologist of certain wireless apparata he had heard. Not a word was actually spoken by either Sanusian.

Van Emmon kept a close watch upon the conning tower on the other machine. The sun was shining upon it in such a fashion that its gleam made inspection very difficult. Once he fancied that he could make out a short, compact figure within the "eye"; but he could not be sure. The glass, or whatever it was, reflected everything within range.

Was the airman a quadruped? Did he sit or stand upright, like a man? Or did he use all four limbs, animal-fashion? Van Emmon had to admit that he could not tell; no wonder he didn't guess the truth.

Shortly after receiving the summons, the geologist's agent changed his direction slightly; and within ten minutes the machine was passing over a large grain field. On the far edge was a row of trees, and it was toward this that the Sanusian proceeded to volplane, presently coming to another nausea-producing stop. Once more Van Emmon was temporarily helpless.

When he could look again, he saw that the machine had landed upon a steep slope, this time with its nose pointing upward. Far above was what looked like a cave, with a growth of some queer, black grass on its upper rim. The craft commenced to move upward, over a smooth, dark tan surface.

In half a minute the machine had reached the top of the slope, and the geologist looked eagerly for what might lie within the cave. He was disappointed; it was not a cave at all. Instead, another brown slope, or rather a bulging precipice, occupied this depression.

Van Emmon looked closer. At the bottom of this bulge was a queer fringe of the same kind of grass that showed on top of it. Van Emmon looked from one to the other, and all of a sudden the thing dawned upon him.

This stupendous affair was no mountainside; it was neither more nor less than the head of a colossal statue! A mammoth edition of the Goddess of Liberty; and the aircraft had presumed to alight upon its cheek!

The machine clung there, motionless, for some time, quite as though the airman knew that Van Emmon would like to look a long while. He gazed from side to side as far as he could see, making out a small section of the nose, also the huge curves of a dust-covered ear. It was wonderfully life-like.

Next second came the earthquake. The whole statue rocked and swayed; Van Emmon looked to see the machine thrown off. From the base of the monument came a single terrific sound, a veritable roar, as though the thing was being wrenched from the heart of the earth. From somewhere on top came a spurt of water that splashed just beside the craft.

Then came the most terrible thing. Without the slightest warning the statue's great eye opened! Opened wide, revealing a prodigious pupil which simply blazed with wrath!

The statue was alive!

Next second the Sanusian shot into the air. A moment and Van Emmon was able to look again, and as it happened, the craft was now circling the amazing thing it had just quit, so that the geologist could truthfully say that he was dead sure of what he saw.

He was justified in wanting to be absolutely sure. Resting on the solid earth was a human head, about fifty yards wide and proportionately as tall. It was alive; but IT WAS ONLY THE HEAD, NOTHING MORE.