All at once, a hideous solution presented itself. Was it possible that Barton's money was to be only _apparently_ stolen--in reality returned to him privately, afterwards? Possibly the rest of the plunder divided between the two confederates? Gilbert was not in a charitable mood; the human race was much more depraved, in his view, than twelve hours before; and the inference which he would have rejected as monstrous, that very morning, now assumed a possible existence. One thing, at least, was certain; he would exact an explanation, and if none should be furnished, he would make public the evidence in his hands. The black, dreary night seemed interminable. He could only guess, here and there, at a landmark, and was forced to rely more upon Roger's instinct of the road than upon the guidance of his senses. Towards midnight, as he judged, by the solitary crow of a cock, the rain almost entirely ceased. The wind began to blow, sharp and keen, and the hard vault of the sky to lift a little. He fancied that the hills on his right had fallen away, and that the horizon was suddenly depressed towards the north. Roger's feet began to splash in constantly deepening water, and presently a roar, distinct from that of the wind, filled the air. It was the Brandywine. The stream had overflowed its broad meadow-bottoms, and was running high and fierce beyond its main channel. The turbid waters made a dim, dusky gleam around him; soon the fences disappeared, and the flood reached to his horse's belly. But he knew that the ford could be distinguished by the break in the fringe of timber; moreover, that the creek-bank was a little higher than the meadows behind it, and so far, at least, he might venture. The ford was not more than twenty yards across, and he could trust Roger to swim that distance. The faithful animal pressed bravely on, but Gilbert soon noticed that he seemed at fault. The swift water had forced him out of the road, and he stopped, from time to time, as if anxious and uneasy. The timber could now be discerned, only a short distance in advance, and in a few minutes they would gain the bank. What was that? A strange rustling, hissing sound, as of cattle trampling through dry reeds,--a sound which quivered and shook, even in the breath of the hurrying wind! Roger snorted, stood still, and trembled in every limb; and a sensation of awe and terror struck a chill through Gilbert's heart. The sound drew swiftly nearer, and became a wild, seething roar, filling the whole breadth of the valley. “Great God!” cried Gilbert, “the dam!--the dam has given way!” He turned Roger's head, gave him the rein, struck, spurred, cheered, and shouted. The brave beast struggled through the impeding flood, but the advance wave of the coming inundation already touched his side. He staggered; a line of churning foam bore down upon them, the terrible roar was all around and over them, and horse and rider were whirled away.