The settlers certainly had reason to be pretty tired. The journey had been long, and the task of getting down the balloon had not rested either their arms or legs. They were anxious to reach Granite House to eat and sleep, and if the bridge had been constructed, in a quarter of an hour they would have been at home.

The night was very dark. Pencroft prepared to keep his promise by constructing a sort of raft, on which to make the passage of the Mercy. He and Neb, armed with axes, chose two trees near the water, and began to attack them at the base.

Cyrus Harding and Spilett, seated on the bank, waited till their companions were ready for their help, while Herbert roamed about, though without going to any distance. All at once, the lad, who had strolled by the river, came running back, and, pointing up the Mercy, exclaimed,--

"What is floating there?"

Pencroft stopped working, and seeing an indistinct object moving through the gloom,--

"A canoe!" cried he.

All approached, and saw to their extreme surprise, a boat floating down the current.

"Boat ahoy!" shouted the sailor, without thinking that perhaps it would be best to keep silence.

No reply. The boat still drifted onward, and it was not more than twelve feet off, when the sailor exclaimed,--

"But it is our own boat! she has broken her moorings, and floated down the current. I must say she has arrived very opportunely."

"Our boat?" murmured the engineer.

Pencroft was right. It was indeed the canoe, of which the rope had undoubtedly broken, and which had come alone from the sources of the Mercy. It was very important to seize it before the rapid current should have swept it away out of the mouth of the river, but Neb and Pencroft cleverly managed this by means of a long pole.

The canoe touched the shore. The engineer leaped in first, and found, on examining the rope, that it had been really worn through by rubbing against the rocks.

"Well," said the reporter to him, in a low voice, "this is a strange thing."

"Strange indeed!" returned Cyrus Harding.

Strange or not, it was very fortunate. Herbert, the reporter, Neb, and Pencroft, embarked in turn. There was no doubt about the rope having been worn through, but the astonishing part of the affair was, that the boat should arrive just at the moment when the settlers were there to seize it on its way, for a quarter of an hour earlier or later it would have been lost in the sea.

If they had been living in the time of genii, this incident would have given them the right to think that the island was haunted by some supernatural being, who used his power in the service of the castaways!

A few strokes of the oar brought the settlers to the mouth of the Mercy. The canoe was hauled up on the beach near the Chimneys, and all proceeded towards the ladder of Granite House.

But at that moment, Top barked angrily, and Neb, who was looking for the first steps, uttered a cry.

There was no longer a ladder!

Chapter 6

Cyrus Harding stood still, without saying a word. His companions searched in the darkness on the wall, in case the wind should have moved the ladder, and on the ground, thinking that it might have fallen down.... But the ladder had quite disappeared. As to ascertaining if a squall had blown it on the landing-place, half way up, that was impossible in the dark.

"If it is a joke," cried Pencroft, "it is a very stupid one! To come home and find no staircase to go up to your room by--that's nothing for weary men to laugh at."

Neb could do nothing but cry out "Oh! oh! oh!"

"I begin to think that very curious things happen in Lincoln Island!" said Pencroft.

"Curious?" replied Gideon Spilett, "not at all, Pencroft, nothing can be more natural. Some one has come during our absence, taken possession of our dwelling and drawn up the ladder."

"Some one," cried the sailor. "But who?"

"Who but the hunter who fired the bullet?" replied the reporter.

"Well, if there is any one up there," replied Pencroft, who began to lose patience, "I will give them a hail, and they must answer."

And in a stentorian voice the sailor gave a prolonged "Halloo!" which was echoed again and again from the cliff and rocks.