"What would be the use of that, Pencroft?" replied Harding. "No. We will not separate!"

There was not a moment to be lost. The colonists left the Chimneys. A bend of the cliff prevented them from being seen by those in the brig, but two or three reports, and the crash of bullets on the rock, told them that the "Speedy" was at no great distance.

To spring into the lift, hoist themselves up to the door of Granite House, where Top and Jup had been shut up since the evening before, to rush into the large room, was the work of a minute only.

It was quite time, for the settlers, through the branches, could see the "Speedy," surrounded with smoke, gliding up the channel. The firing was incessant, and shot from the four guns struck blindly, both on the Mercy post, although it was not occupied, and on the Chimneys. The rocks were splintered, and cheers accompanied each discharge. However, they were hoping that Granite House would be spared, thanks to Harding's precaution of concealing the windows when a shot, piercing the door, penetrated into the passage.

"We are discovered!" exclaimed Pencroft.

The colonists had not, perhaps, been seen, but it was certain that Bob Harvey had thought proper to send a ball through the suspected foliage which concealed that part of the cliff. Soon he redoubled his attack, when another ball having torn away the leafy screen, disclosed a gaping aperture in the granite.

The colonists' situation was desperate. Their retreat was discovered. They could not oppose any obstacle to these missiles, nor protect the stone, which flew in splinters around them. There was nothing to be done but to take refuge in the upper passage of Granite House, and leave their dwelling to be devastated, when a deep roar was heard, followed by frightful cries!

Cyrus Harding and his companions rushed to one of the windows--

The brig, irresistibly raised on a sort of water-spout, had just split in two, and in less than ten seconds she was swallowed up with all her criminal crew!

Chapter 4

"She has blown up!" cried Herbert.

"Yes! blown up, just as if Ayrton had set fire to the powder!" returned Pencroft, throwing himself into the lift together with Neb and the lad.

"But what has happened?" asked Gideon Spilett, quite stunned by this unexpected catastrophe.

"Oh! this time, we shall know--" answered the engineer quickly.

"What shall we know?--"

"Later! later! Come, Spilett. The main point is that these pirates have been exterminated!"

And Cyrus Harding, hurrying away the reporter and Ayrton, joined Pencroft, Neb, and Herbert on the beach.

Nothing could be seen of the brig, not even her masts. After having been raised by the water-spout, she had fallen on her side, and had sunk in that position, doubtless in consequence of some enormous leak. But as in that place the channel was not more than twenty feet in depth, it was certain that the sides of the submerged brig would reappear at low water.

A few things from the wreck floated on the surface of the water, a raft could be seen consisting of spare spars, coops of poultry with their occupants still living, boxes and barrels, which gradually came to the surface, after having escaped through the hatchways, but no pieces of the wreck appeared, neither planks from the deck, nor timber from the hull,-- which rendered the sudden disappearance of the "Speedy" perfectly inexplicable.

However, the two masts, which had been broken and escaped from the shrouds and stays came up, and with their sails, some furled and the others spread. But it was not necessary to wait for the tide to bring up these riches, and Ayrton and Pencroft jumped into the boat with the intention of towing the pieces of wreck either to the beach or to the islet. But just as they were shoving off, an observation from Gideon Spilett arrested them.

"What about those six convicts who disembarked on the right bank of the Mercy?" said he.

In fact, it would not do to forget that the six men whose boat had gone to pieces on the rocks had landed at Flotsam Point.