Miles away a giant white man crouched in the concealment of a dense thicket with a little black girl. The fingers of one of the man's hands were across her mouth, those of the other held a knife at her heart. The man's eyes were not upon the girl, but were straining through the dense foliage toward a game trail along which two ebon warriors were advancing. Succor was close at hand for Uhha, the daughter of Khamis the witch doctor, for the two approaching were hunters from the village of Obebe, the chief; but she dared not call aloud to attract them lest the sharp point of Miranda's knife slip into her young heart, and so she heard them come and go until, their voices lost in the distance, the Spaniard arose and dragged her back upon the trail, where they took up, what seemed to Uhha, their endless and fruitless wanderings through the jungle.
In the village of the ant men Tarzan found a warm welcome and having decided to remain for a while that he might study them and their customs he set to work, as was his wont when thrown among strange peoples, to learn their language as quickly as possible. Having already mastered several languages and numerous dialects the ape-man never found it difficult to add to his linguistic attainments, and so it was only a matter of a comparatively short time before he found it possible to understand his hosts and to make himself understood by them. It was then that he learned that they had at first thought that he was some form of Alalus and had consequently believed that it ever would be impossible to communicate with him by other means than signs. They were greatly delighted therefore when it had become apparent that he could utter vocal sounds identical to theirs, and when they comprehended that he desired to learn their tongue, Adendrohahkis, the king, placed several instructors at his disposal and gave orders that all his people, with whom the giant stranger might come in contact, should aid him to an early understanding of their language.
Adendrohahkis was particularly well inclined toward the ape-man because of the fact that it had been the king's son, Komodoflorensal, whom Tarzan had rescued from the clutches of the Alalus woman, and so it was that everything was done to make the giant's stay among them a pleasant one. A hundred slaves brought his food to him where he had taken up his abode beneath the shade of a great tree that grew in lonely majesty just outside the city. When he walked among the group of dome-houses a troop of cavalry galloped ahead to clear a path for him, lest he trod upon some of the people of the city; but always was Tarzan careful of his hosts, so that no harm ever befell one of them because of him.
As he mastered the language he learned many things concerning these remarkable people. Prince Komodoflorensal almost daily took it upon himself to assist in the instruction of his colossal guest and it was from him that Tarzan learned most. Nor were his eyes idle as he strolled around the city. Particularly interesting was the method of construction used in erecting the comparatively gigantic dome-houses which towered high above even the great Tarzan. The first step in the construction was to outline the periphery of the base with boulders of uniform size and weighing, perhaps, fifty pounds each. Two slaves easily carried such a boulder when it was slung in a rope hammock and as thousands of slaves were employed the work progressed with rapidity. The circular base, with a diameter of one hundred and fifty to two hundred feet, having been outlined, another, smaller circle was laid about ten feet inside the first, four openings being left in each circle to mark the location of the four entrances to the completed building and corresponding to the four principal cardinal points of the compass. The walls of the entrances were then outlined upon the ground with similar large boulders, these being a little more carefully selected for uniformity, after which the four enclosures thus formed were packed closely with boulders. The corridors and chambers of the first floor were then outlined and the spaces between filled with boulders, each being placed with the utmost care and nicety in relation to those touching it and those that should rest upon it when the second course was laid, for these were to support a tremendous weight when the edifice was completed. The corridors were generally three feet wide, the equivalent of twelve feet by our standards, while the chambers, varied in dimensions according to the uses to which they were to be put. In the exact center of the building a circular opening was left that measured ten feet in diameter and this was carried upward as the building progressed until the whole formed an open shaft from ground floor to roof in the completed edifice.
The lower course having been built up in this manner to a height of six inches wooden arches were placed at intervals the lengths of the corridors which were now ceiled over by the simple expedient of fastening thin wooden strips lengthways of the corridors from arch to arch until the corridors were entirely roofed. The strips, or boards, which overlapped one another, were fastened in place by wooden dowels driven through them into the peripheries of the arches. As this work was progressing the walls of the various chambers and the outer wall of the building were raised to a height of twenty-four inches, bringing them to the level of the ceilings of the arched corridors, and the spaces between chambers and corridors were packed with boulders, the interstices between which were filled with smaller stones and gravel. The ceiling beams were then placed across the other chambers, timbers six inches square hewn from a hard, tough wood being used, and in the larger chambers these were further supported, at intervals, by columns of the same dimensions and material. The ceiling beams being in place they were covered over with tight-fitting boards, doweled to place. The ceilings of the chambers now projected six inches above the surrounding course of the structure, and at this juncture hundreds of cauldrons were brought in which a crude asphalt was heated until it became liquid and the interstices of the next six-inch course were filled with it, bringing the entire completed course to the same level at a height of thirty inches, over all of which a second six-inch course of rock and asphalt was laid, and the second story laid out and completed in a similar manner.
The palace of Adendrohahkis , constructed in this way, was two hundred twenty feet in diameter, and one hundred ten feet high, with thirty-six floors capable of housing eighty thousand people, a veritable anthill of humanity. The city consisted of ten similar domes, though each slightly smaller than the king's, housing a total of five hundred thousand people, two-thirds of whom were slaves; these being for the most part the artisans and body servants of the ruling class. Another half million slaves, the unskilled laborers of the city, dwelt in the subterranean chambers of the quarries from which the building material was obtained. The passageways and chambers of these mines were carefully shored and timbered as the work progressed, resulting in fairly commodious and comfortable quarters for the slaves upon the upper levels at least, and as the city was built upon the surface of an ancient ground moraine, on account of the accessibility of building material, the drainage was perfect, the slaves suffering no inconvenience because of their underground quarters.
The domes themselves were well ventilated through the large central air shaft and the numerous windows that pierced the outer walls at frequent intervals at each level above the ground floor, in which, as previously explained, there were but four openings. The windows, which were six and one-quarter inches wide by eighteen and a half inches high, admitted a certain amount of light as well as air; but the interior of the dome, especially the gloomy chambers midway between the windows and the central light and air shaft, was illuminated by immense, slow-burning, smokeless candles.