We were neither of us in any mind to linger there, lest the monster and his brood came to attack us, for we were now so terrified that we would have believed them capable of anything. This was the second time that we had been baulked of finding an outlet to the sea, and our experience had been such that we should scarce attempt it again. We hurried back through the tunnel, and had not gone very far when we had another alarm, for whereas it had been dry when we descended, there was now a little stream of water running down, which increased as we advanced until it became almost a rivulet. At first I thought that the plug had come out of the pipe leading from the lake into the shaft, but when we came to the junction of the two passages, we saw that the water, which was now above our ankles, was pouring out of the right-hand passage, and not from the one that led from the cavern. This eased our alarm, but we did not stay to consider of any attempt to discover the ultimate source of this little torrent, but hastened on until we were once more in our hut; and then we knew by the mighty pattering on the roof and all around that a very heavy rain was falling. Indeed, when we opened the door we saw that it must have been raining ever since we departed, for the ground was exceeding sodden, and the trench about the hut was half full of water, being scarce deep enough to carry off the drainage. Of course the rain had put out the fire which we kept constantly smouldering in the grate a few feet from our door, and though a hot meal would have been very comforting after our fright and the wetting we had got, we could not make one ready, because we had no dry wood in the hut, nor indeed did we care to light a fire in it, having no chimney to let out the smoke. [Sidenote: A Mystery Solved]