As evening fell, flashes of sheet-lightning were occasionally to be seen along the southern horizon; and Captain Leicester, anticipating a thunder-storm and a probable heavy downfall of rain, made preparations for the refilling of his water-casks. But, though the atmosphere appeared to be heavily charged with electricity, the thunder held off, and when night closed down upon the convoy, the moon being then in her third quarter and rising late, it became as dark as a wolf's mouth. Lights were of course displayed on board each ship; and the convoy having become somewhat scattered in consequence of the failure of the breeze, the effect was very singular and striking. This being George's first voyage across the Atlantic, he was naturally a little anxious; and on the night in question he resolved to remain on deck until the weather should have assumed some more decided aspect. There was fortunately still a gentle breeze from about east-south-east fanning the convoy along at a speed of some two knots in the hour, just giving the ships steerage-way; and they were consequently able to keep out of each other's way, and thus avoid collision, always a great element of danger when a large number of craft happen to be sailing in company. About two bells in the middle watch, George being seated at the time near the companion, smoking a meditative pipe, and thinking somewhat ruefully about Lucy Walford, the carpenter, who was in charge of the deck, approached him and said-- "Unless I am greatly mistaken, sir, here's a large craft without any lights creeping up on our larboard quarter." "Indeed," said George, rousing himself and stepping aft to the taffrail with the carpenter; "whereabouts is she?" The carpenter looked intently astern for a moment, then stretched out his arm, saying-- "There, sir--ah! now you can see her, she is just about to shut out the first of those four lights that you can see all close together. There! now she has shut it out." "I see her!" said George. "Whatever does the fellow mean by being without lights on such a pitch-dark night as this; it would serve him right to report him to the commodore in the morning. He has a smart vessel under his feet, though; see how she is overhauling us. Why, it must surely be one of the gun-brigs, judging from her spread of canvas and her lofty spars. But what can she be doing here, in the very middle of the fleet, and without lights, too?" The stranger was by this time little more than a couple of cables' lengths from the _Aurora_, drawing up to her fast, and apparently intending to pass her very closely. George glanced anxiously at his stern light, thinking it might possibly have gone out, but no, it was burning brightly and must be distinctly visible to those on board the other craft.