He lay and longed for the dawn, when he hoped to explore the situation better, and perchance to find the watercourse which he was convinced could not be far distant. Moreover, he was extremely anxious to be out of the reach of the natives whom, it was only too likely, Negoro and Harris might be putting on their track.
But as yet no glimmer of daylight penetrated the aperture of the cone, whilst the heavy rumblings, deadened as they were by the thickness of the walls, made it certain that the storm was still raging with undiminished fury. Attentively Dick listened, and he could distinctly hear the rain beating around the base of the ant-hill; the heavy drops splashed again as they fell, in a way altogether different to what they would upon solid ground, so that he felt sure that the adjacent land was by this time completely flooded. He was getting very drowsy when it suddenly occurred to him that it was not unlikely the aperture was getting blocked up with damp clay; in that case he knew that the breath of the inmates would quickly vitiate the internal atmosphere. He crept along the ground and had the satisfaction of finding that the clay embankment was still perfectly dry; the orifice was quite unobstructed, allowing not only a free passage to the air, but admitting the glare of the occasional flashes of lightning, which the descending volumes of water did not seem to stay.
Having thus far satisfied himself that all was well, and that there was no immediate danger, Dick thought that he might now resign himself to sleep as well as the rest: he took the precaution, however, of stretching himself upon the embankment within easy reach of the opening, and with his head supported against the wall, after a while dozed off.
How long his light slumber had lasted he could not say, when he was aroused by a sensation of cold. He started up, and to his horror discovered that the water had entered the ant-hill and was rising rapidly; it could not be long, he saw, before it reached the cells which were occupied by Hercules and Tom. He woke them at once, and told them what he had observed. The lantern was soon lighted, and they set to work to ascertain what progress the water was making It rose for about five feet, when it was found to remain stationary.
"What is the matter, Dick?" inquired Mrs. Weldon, disturbed by the movements of the men.
"Nothing very alarming," answered Dick promptly; "only some water has found its way into the lower part of the place; it will not reach your upper cells; probably some river has overflowed its boundaries."
"The very river, perhaps," suggested Hercules assuringly, "that is to carry us to the coast."
Mrs. Weldon made no reply.
Cousin Benedict was still sleeping as soundly as if he were himself a white ant; the negroes were peering down on to the sheet of water which reflected back the rays of the lantern, ready to carry out any orders given by Dick, who was quietly gauging the inundation, and removing the provisions and fire-arms out of its reach.
[Illustration: They set to work to ascertain what progress the water was making.]