And yet, absurd as it may seem, I fancied, half asleep as I was, that it was the same rat returning to avenge itself. This fancy, however, forsook me as soon as I was fairly awake, and I knew it could not be the same. Most likely it was its mate, or partner, and a fit partner it was, for I noticed as I passed my fingers over it, that this second one was also a rat of very large size. No doubt, thought I, this is the female of the one I have killed coming in search of her mate. But she had entered by the same crevice; she must have passed where the dead one lay, and must know what had occurred? Was she going to avenge his death? Sleep was again banished from my eyes. How could I sleep, with such a hideous animal prowling about, and perhaps with the fixed intention to attack me? Wearied as I had now grown with watching, I could not go to rest until I should rid myself of this second intruder. I was under the belief that this one would soon return again. I had not caught hold of it, but merely touched it with my fingers, and as I had offered no particular violence to it, likely enough it would soon venture back. Under this conviction I placed myself as before, close to the crevice, jacket in hand, and with my ear set close to the aperture, I listened attentively. In a few minutes I distinctly heard the chirrup of a rat outside, and almost continually the same scratching and pattering I had noticed before. I think there was some loose board or hollow box by which the sound was produced--for it was very loud to be caused by so small an animal. These noises continued, and I fancied that I also heard the rat passing into my chamber, but still the pattering and scratching were kept up outside, and therefore the animal could not be in. Once more I was sure I heard it passing me, but at the same time the chirrup fell on my ear, and that certainly came from without. Again and again I fancied I was not the only tenant of the chamber, but I still restrained myself from closing up the crevice, thinking I might be mistaken. At length, however, a loud squeal was uttered to the right of my position, certainly within the enclosure; and, waiting no longer, I stuffed the jacket into the aperture, and made all tight and sure. I now turned to feel for the rat, taking the precaution, as before, to insert my hands into the buskins. I had taken still another precaution, and that was to tie the legs of my trousers tight around my ankles, lest this other rat should act as its predecessor had done. Thus prepared, I proceeded to grope around. I had no liking for the encounter, but I was determined to rid myself of the annoyance which I had been suffering, and get some sleep, without being again disturbed; and I could think of no other way than to kill the rat as I had done its companion.