During the night, Cyrus Harding and Gideon Spilett had no opportunity for talking together, and yet the words pronounced in the reporter's ear by the engineer were well worth being discussed, together with the mysterious influence which appeared to reign over Lincoln Island. Gideon Spilett did not cease from pondering over this new and inexplicable incident,--the appearance of a fire on the coast of the island. The fire had actually been seen! His companions, Herbert and Pencroft, had seen it with him! The fire had served to signalise the position of the island during that dark night, and they had not doubted that it was lighted by the engineer's hand; and here was Cyrus Harding expressly declaring that he had never done anything of the sort! Spilett resolved to recur to this incident as soon as the _Bonadventure_ returned, and to urge Cyrus Harding to acquaint their companions with these strange facts. Perhaps it would be decided to make in common a complete investigation of every part of Lincoln Island. However that might be, on this evening no fire was lighted on these yet unknown shores, which formed the entrance to the gulf, and the little vessel stood off during the night. When the first streaks of dawn appeared in the western horizon, the wind, which had slightly fallen, shifted two points, and enabled Pencroft to enter the narrow gulf with greater ease. Towards seven o'clock in the morning, the _Bonadventure_, weathering the North Mandible Cape, entered the strait and glided on to the waters, so strangely enclosed in the frame of lava. "Well," said Pencroft, "this bay would make admirable roads, in which a whole fleet could lie at their ease!" "What is especially curious," observed Harding, "is that the gulf has been formed by two rivers of lava, thrown out by the volcano, and accumulated by successive eruptions. The result is that the gulf is completely sheltered on all sides, and I believe that even in the stormiest weather, the sea here must be as calm as a lake." "No doubt," returned the sailor, "since the wind has only that narrow entrance between the two capes to get in by; and besides, the north cape protects that of the south in a way which would make the entrance of gusts very difficult. I declare our _Bonadventure_ could stay here from one end of the year to the other, without even dragging at her anchor!" "It is rather large for her!" observed the reporter. "Well! Mr. Spilett," replied the sailor, "I agree that it is too large for the _Bonadventure_; but if the fleets of the Union were in want of a harbour in the Pacific, I don't think they would ever find a better place than this!" "We are in the shark's mouth," remarked Neb, alluding to the form of the gulf. "Right into its mouth, my honest Neb!" replied Herbert; "but you are not afraid that it will shut upon us, are you?" "No, Mr. Herbert," answered Neb; "and yet this gulf here doesn't please me much! It has a wicked look!"