I looked forth, and saw at the extreme end of the jib-boom, what I have read of, certainly, but never expected to see, a pale, greenish, glow-worm colored flame, of the size and shape of the frosted glass shade over the swinging lamp in the gun-room. It drew out and flattened as the vessel pitched and rose again, and as she sheered about, it wavered round the point that seemed to attract it, like a soap suds bubble blown from a tobacco-pipe, before it is shaken into the air; at the core it was comparatively bright, but faded into a halo. It shed a baleful and ominous light on the surrounding objects; the group of sailors on the forecastle looked like spectres, and they shrunk together, and whispered when it began to roll slowly along the spar where the boatswain was sitting at my feet. At this instant something slid down the stay, and a cold clammy hand passed around my neck. I was within an ace of losing my hold and tumbling overboard.--"Heaven have mercy on me what's that?" "It's that sky-larking son of a gun, Jem Sparkle's monkey, sir. You Jem, you'll never rest till that brute is made shark's bait of." But Jacko vanished up the stay again, chuckling and grinning in the ghastly radiance, as if he had been 'the spirit of the Lamp.' The light was still there, but a cloud of mist, like a burst of vapor from a steam boiler, came down upon the gale and flew past, when it disappeared. I followed the white mass as it sailed down the wind; it did not, as it appeared to me, vanish in the darkness, but seemed to remain in sight to leeward, as if checked by a sudden flaw; yet none of our sails were taken aback. A thought flashed on me. I peered still more intensely into the night. I was not certain.--"A sail, broad on the lee bow." The captain answered from the quarter-deck--"Thank you, Mr. Cringle. How shall we steer?" "Keep her away a couple of points, sir, steady." "Steady," sung the man at the helm; and a slow melancholy cadence, although a familiar sound to me, now moaned through the rushing wind, and smote upon my heart as if it had been the wailing of a spirit. I turned to the boatswain, who was now standing beside me, "is that you or Davy steering, Mr. Nipper? if you had not been there bodily at my side, I could have sworn that was your voice." When the gunner made the same remark, it started the poor fellow; he tried to take it as a joke, but could not. "There may be a laced hammock with a shot in it, for some of us ere morning." At this moment, to my dismay, the object we were chasing shortened,--gradually fell abeam of us, and finally disappeared.