not consist in that! Captain Nemo foresaw it clearly! No, the danger does not lie there!"
Cyrus Harding advanced towards the enormous causeway whose prolongation enclosed the narrow Shark Gulf. He could now sufficiently examine on this side the ancient channels of the lava. There was no doubt in his mind that the most recent eruption had occurred at a far-distant epoch.
He then returned by the same way, listening attentively to the subterranean mutterings which rolled like long-continued thunder, interrupted by deafening explosions. At nine in the morning he reached the corral.
Ayrton awaited him. "The animals are cared for, Captain Harding," said Ayrton.
"Good, Ayrton."
"They seem uneasy, Captain Harding."
"Yes, instinct speaks through them, and instinct is never deceived."
"Are you ready?"
"Take a lamp, Ayrton," answered the engineer; "we will start at once."
Ayrton did as desired, and they took the narrow path which led westward to the shore. The soil they walked upon was choked with the pulverized matter fallen from the cloud. No quadruped appeared in the woods. Even the birds had fled. Sometimes a passing breeze raised the covering of ashes, and the two colonists, enveloped in a whirlwind of dust, lost sight of each other. They were then careful to cover their eyes and mouths, for they ran the risk of being blinded and suffocated.
It was impossible for Cyrus Harding and Ayrton, with these impediments, to make rapid progress. Moreover, the atmosphere was close, as if the oxygen had been partly burnt up, and had become unfit for respiration. At every hundred paces they were obliged to stop to take breath. It was therefore past ten o'clock when the engineer and his companion reached the crest of the enormous mass of rocks of basalt and porphyry which composed the northwest coast of the island.
They commenced the descent of this abrupt declivity, following almost step for step the difficult path which, during that stormy night, had led them to Dakkar Grotto. In
