Layers upon layers were built in this manner, and this flat foundation communicated by numerous tunnels with the yellow earth underneath. The officers kept watch to see that the work was done. Special care was taken in the building of the outer walls, for these were to be very solid, having to protect the interior from the weather or from violence. They made the wall much thicker and harder, and impervious to rain.
When daylight approached, they closed all the openings leading into the building. Strange to say, though it is dark in the house, the ants can tell when the day is over and when the night has come. So, after the sun had set and darkness had come over the land, the officers broke with their big pincers the mortar that had closed the openings, and the workers continued their task. The building rose as if by enchantment, for thousands upon thousands were working with all their might.
As the structure rose, the number of cells and tunnels increased, and the building assumed somewhat of a sugar-loaf appearance.
As they began to reach the top, they built points or pinnacles, making the top the very strongest of all the parts of the structure.
The giant nchellelays were wise in the art of building, and knew that the summit of their dwellings was to bear the brunt of the weather, of the rain-storm, and even the fall of a tree, so that in this place the masonry was several inches thick.
The structure, after a great deal of labor, was finished, attaining a height of fourteen feet and a diameter of five feet at the base. Hundreds of millions of grains of yellow earth had been used in its construction. Each grain had been placed as systematically as if the most skilful bricklayer had done the work, and the roofs of the cells were arched, for the ants knew the strength of the arch. And, when completed, the building was so strong, high, and large, that even the huge njokoo had to pass it by, leaving it untouched.
A long time had passed, when one day a very large dead branch fell upon the building of the giant nchellelays and destroyed some of the pinnacles. News soon spread through the cells that a great accident had happened, that the top of the house was damaged; there was great commotion and excitement among the population when this occurred. The officers came round the openings to see what was the matter, and to defend them against possible intruders. The wounded and the eggs were brought inside. The work of repairing began at once, and the workers brought their grains of earth, and much of the broken material was used in making repairs.
During the night the nchellelays rebuilt the pinnacles, the new ones being of exactly the same shape as those that had been destroyed.
Things went on well for a few days, when another huge limb of the same tree fell on the structure and damaged it again.