During these hours of weary and awful suspense, the discourse, between the watchers, though conducted in tones of confidence, and often of tenderness, was broken by long intervals of deep and musing silence.  Each forbore to dwell upon the danger of their situation, in consideration of the feelings of the rest; but neither could conceal the imminent risk they ran, from that jealous watchfulness of love of life which was common to them all.  In this manner, minutes, hours, and the day itself, rolled by, and the darkness was seen stealing along the deep, gradually narrowing the boundary of their view towards the east, until the whole of the empty scene was limited to a little dusky circle around the spot on which they lay.  To this change succeeded another fearful hour, during which it appeared that death was about to visit them, environed by its most revolting horrors.  The heavy plunge of the wallowing whale, as he cast his huge form upon the surface of the sea, was heard, accompanied by the mimic blowings of a hundred imitators, that followed in the train of the monarch of the ocean.  It appeared to the alarmed and feverish imagination of Gertrude, that the brine was giving up all its monsters; and, notwithstanding the calm assurances of Wilder, that these accustomed sounds were rather the harbingers of peace than signs of any new danger, they filled her mind with images of the secret recesses over which they seemed suspended by a thread, and painted them replete with the disgusting inhabitants of the caverns of the great deep.  The intelligent seaman himself was startled, when he saw, on the surface of the water, the dark fins of the voracious shark stealing around the wreck, apprised, by his instinct, that the contents of the devoted vessel were shortly to become the prey of his tribe.  Then came the moon, with its mild and deceptive light, to throw the delusion of its glow on the varying but ever frightful scene.

“See,” said Wilder, as the luminary lifted its pale and melancholy orb out of the bed of the ocean; “we shall have light for our hazardous launch!”

“Is it at hand?” demanded Mrs Wyllys, with all the resolution of manner she could assume in so trying a situation.

“It is—­the ship has already brought her scuppers to the water.  Sometimes a vessel will float until saturated with the brine.  If ours sink at all, it will be soon.”

“If at all!  Is there then hope that she can float?”

“None!” said Wilder, pausing to listen to the hollow and threatening sounds which issued from the depths of the vessel, as the water broke through her divisions, in passing from side to side, and which sounded like the groaning of some heavy monster in the last agony of nature.  “None; she is already losing her level!”

His companions saw the change; but, not for the empire of the world, could either of them have uttered a syllable.  Another low, threatening, rumbling sound was heard, and then the pent air beneath blew up the forward part of the deck, with an explosion like that of a gun.