within reach, under the eyes of the colonists, and if necessar, under lock and key.
That evening a telegram was sent to Ayrton, requesting him to bring from the corral a couple of goats, which Neb wished to acclimatize to the plateau. Singularly enough, Ayrton did not acknowledge the receipt of the despatch, as he was accustomed to do. This could not but astonish the engineer. But it might be that Ayrton was not at that moment in the corral, or even that he was on his way back to Granite House. In fact, two days had already passed since his departure, and it had been decided that on the evening of the 10th or at the latest the morning of the 11th, he should return. The colonists waited, therefore, for Ayrton to appear on Prospect Heights. Neb and Herbert even watched at the bridge so as to be ready to lower it the moment their companion presented himself.
But up to ten in the evening, there were no signs of Ayrton. It was, therefore, judged best to send a fresh despatch, requiring an immediate reply.
The answering bell of the telegraph remained mute.
The colonists' uneasiness was great. What had happened? Was Ayrton no longer at the corral, or if he was still there, had he no longer control over his movements? Could they go to the corral in this dark night?
They consulted. Some wished to go, others not.
"Perhaps," said Herbert, "some accident happened to the telegraphic apparatus, so that it works no longer?"
"That may be," said the reporter.
"Wait till to-morrow," replied Cyrus Harding. "It is possible, indeed, that Ayrton has not received our despatch, or even that we have not received his."
They waited, with anxiety. At dawn of day, the 11th of November, Harding again sent the electric current and received no reply. He tried again: the same result.
"Of to the corral," said he.
"And well armed!" added Pencroft.
It was immediately decided that Granite House should not be left alone and that Neb should remain there. After having accompanied his friends to Creek Glycerine, he raised the bridge; and waiting behind a tree he watched for the return of either his companions or Ayrton.
In the event of the pirates presenting themselves and
