It was by this time "five bells;" and the night was, without exception, the darkest, I think, that I had ever experienced. So dark, indeed, was it, that, well as we knew the ship, we had to feel our way along the deck with hands and feet, for it was absolutely impossible to see anything a foot beyond the end of one's nose. With such intense darkness as this it was evident that the heavens must be obscured by exceptionally heavy masses of cloud; which, with the hot, breathless condition of the atmosphere, led me to anticipate and hope for a thunderstorm, which would at least afford us sufficient light to inspect our surroundings, and so put an end to a state of suspense that was growing wearisome. And not only was the night intensely dark; it was also oppressively silent; for, the water being perfectly smooth, there was no life or motion in the ship to give rise to those sounds--such as the flapping of canvas, the creaking of timbers and bulkheads, etcetera, etcetera--that usually make a calm so irritating to people who happen to be troubled with nerves. All was silent as death itself; our own movements being hushed, in harmony with the prevailing stillness, so that we spoke under our breath, and moved about on tiptoe. In this silent, groping way I followed Roberts forward to inspect the fire engine; and it was while thus engaged with the aid of a carefully shielded lantern, that the mate exclaimed, in a hoarse whisper, as he held up his hand, and bent his head in a listening attitude-- "Hark! did you hear that, sir?" "No," said I, "I heard nothing. What was it?" "Why," answered Roberts, "it sounded to me like the noise of an oar, or a sweep, creaking in a rowlock; and it seemed to come from away yonder,"--pointing, as he spoke, in the direction of the larboard bow. We both listened intently, for fully a minute, without detecting any sound whatever confirmatory of Roberts' evident suspicions; and at length I said, turning once more to the examination of the fire engine-- "Tush, man, you were mistaken; you heard nothing. The fact is, Mr Roberts, you are not quite yourself to-night. You seem nervous, and fidgety, and anxious. The heat of to-day has upset you; and I think you had better let me give you a good stiff dose of quinine when you go below, at eight bells."