“Sure an it’s hard, so it is, that the very log we trusted our lives to should turrun out to be rotten, an all these logs here should be as sound an as strong as steel an iron, ivery mother’s son of thim. If we cud only find a rotten one, an pull it out of its place, we’d be able to git at the others aisy, and haul out all the rist of thim.”
The boys now tried other logs, one after the other; but from all of them they met with the very same stubborn resistance. They had all been placed here evidently by men who worked comscientiously, and were determined to leave no weak spot exposed to the pressure of the earth. And, as was natural, that which had withstood so well the pressure of the surrounding soil, was easily able to withstand the puny efforts of a couple of boys.
XV.
Pat and the Pick.—A dangerous Plan.—Undermining the very Foundation.—A terrible Risk.—Something like an Earthquake.—A Way opened.—They make an Ascent.—A sudden Stop.—The projecting Log.—The Pickaxe.—Who shall go down?—A new Descent.—The Watch of Bart.—Alarm.—A Call.—Silence.—Terror.—An Answer.—Fearful Intelligence.—The very worst.—The Drain.—The rising Waters.—The Pit flooded.—The impending Doom.
IN this way they went over all the logs, and at length reached the lowest layer of all. At this point, Pat’s superior dexterity with the pick enabled him to invent and to put in practice a plan which could not have been used before, or with any of the logs except these lowest ones. For beneath these was the earth, and Pat’s plan was the natural and simple one of digging this earth away, and so undermining the log that lay there. Pat worked nimbly and thoroughly, and as he loosened the soil, Bart scraped it away with his hands. Pat dug down to the depth of a foot all along, and then thrust the pick far in, scooping out the earth that lay on the other side of the log. In this way they succeeded in removing the earth that kept the log in its place, and at length they were able to detach it, and draw it forth.
The removal of this one log served to make the removal of the others possible. By diligent efforts the four logs which composed the lower tier were detached. The side logs were too long for the pit, and therefore had to be placed erect, and leaned against the side. The end logs could lie down easily. The second tier then followed, and was removed more easily than the first. Then the third tier was detached, and the fourth. In each case the logs of the side had to be stood erect, while the end logs were laid on the ground at the bottom.
A serious difficulty now appeared before the boys, and one, too, for which they had not been prepared. The length of the side logs was a very embarrassing circumstance. They were too long to be placed at the bottom, and had to be stood up. But this took up space, and infringed very seriously upon the narrow area in which their operations were carried on. In passing from one side to remove the logs on the other, they had to lift these backward and forward so as to get them out of the way—a work which was most exhaustive, and at the same time hindered them in their proper efforts. Still they kept on, until at length about eight tiers of logs had been removed, and the longer ones filled up so much space, that it was quite impossible to do any more. They still worked away at those which were within reach, and managed to remove a dozen logs more; but after this they could do nothing, for the bottom of the pit was completely filled, and the staying was now a compact mass from which nothing further could be detached until the logs were removed which were covered up by those piled against it.
Bart and Pat were now compelled to desist for a time, and as they felt quite exhausted, they raised themselves to the top of the pile of upright logs, and there sat down. Scarcely had they done this, when they were aware of a trembling all around, like an earthquake. In horror they sprang to their feet. The sides seemed to be moving; the logs separated, and descended, and through the crevices there protruded sand and clay. It was as though the whole mass of the casing was falling in. In an instant they knew what it was. In their thoughtlessness they had taken away the foundations of this structure, and it was all falling in. An involuntary cry of terror burst from both. They shrank together, clinging to the pile on which they stood, and awaited their last hour.
But once again there was a respite. The movement ceased. The worst seemed to be over, at least for the present. Yet the result of this one movement was fearful as far as it went. All the logs of the casing seemed severed and distorted, and had apparently descended as far as they had dug away the foundations. Seeing this, another frightful thought came—the broken beam above. They looked up fearfully. As yet, however, the danger impending hesitated to strike, for there, across the mouth of the hole, they saw the broken beam defined against the sky. It did not appear to have moved; nor was there that appearance of irregularity about the upper casing of the pit which now marked the lower. It seemed to them as though the slighter staying of plank had been put in the upper part of the pit, because it was clay, and needed but little protection; but down below, where the soil was looser, stout logs had been required. As they looked up, they saw that all this lower casing of logs had fallen.