The settlers went to the Chimneys to take some pickaxes, iron-tipped spears, string made of fibers, flint and steel; they then returned to the plateau, Top accompanying them.
On the way the sailor could not help saying to the engineer,—
“Don’t you think, captain, that by means of that charming liquid you have made, one could blow up the whole of our island?”
“Without any doubt, the island, continents, and the world itself,” replied the engineer. “It is only a question of quantity.”
“Then could you not use this nitro-glycerine for loading firearms?” asked the sailor.
“No, Pencroft; for it is too explosive a substance. But it would be easy to make some guncotton, or even ordinary powder, as we have azotic acid, saltpeter, sulphur, and coal. Unhappily, it is the guns which we have not got.
“Oh, captain,” replied the sailor, “with a little determination—”
Pencroft had erased the word “impossible” from the dictionary of Lincoln Island.
The settlers, having arrived at Prospect Heights, went immediately towards that point of the lake near which was the old opening now uncovered. This outlet had now become practicable, since the water no longer rushed through it, and it would doubtless be easy to explore the interior.
In a few minutes the settlers had reached the lower point of the lake, and a glance showed them that the object had been attained.