At six we were afoot. The moment drew near to clear a way by blasting through the opposing mass of granite. I begged for the honour of lighting the fuse. This duty done, I was to join my companions on the raft, which had not yet been unloaded; we should then push off as far as we could and avoid the dangers arising from the explosion, the effects of which were not likely to be confined to the rock itself. The fuse was calculated to burn ten minutes before setting fire to the mine. I therefore had sufficient time to get away to the raft. I prepared to fulfil my task with some anxiety. After a hasty meal, my uncle and the hunter embarked whilst I remained on shore. I was supplied with a lighted lantern to set fire to the fuse. "Now go," said my uncle, "and return immediately to us." "Don't be uneasy," I replied. "I will not play by the way." I immediately proceeded to the mouth of the tunnel. I opened my lantern. I laid hold of the end of the match. The Professor stood, chronometer in hand. "Ready?" he cried. "Ay." "Fire!" I instantly plunged the end of the fuse into the lantern. It spluttered and flamed, and I ran at the top of my speed to the raft. "Come on board quickly, and let us push off." Hans, with a vigorous thrust, sent us from the shore. The raft shot twenty fathoms out to sea. It was a moment of intense excitement. The Professor was watching the hand of the chronometer. "Five minutes more!" he said. "Four! Three!" My pulse beat half-seconds. "Two! One! Down, granite rocks; down with you." What took place at that moment? I believe I did not hear the dull roar of the explosion. But the rocks suddenly assumed a new arrangement: they rent asunder like a curtain. I saw a bottomless pit open on the shore. The sea, lashed into sudden fury, rose up in an enormous billow, on the ridge of which the unhappy raft was uplifted bodily in the air with all its crew and cargo. We all three fell down flat. In less than a second we were in deep, unfathomable darkness. Then I felt as if not only myself but the raft also had no support beneath. I thought it was sinking; but it was not so. I wanted to speak to my uncle, but the roaring of the waves prevented him from hearing even the sound of my voice. In spite of darkness, noise, astonishment, and terror, I then understood what had taken place. On the other side of the blown-up rock was an abyss. The explosion had caused a kind of earthquake in this fissured and abysmal region; a great gulf had opened; and the sea, now changed into a torrent, was hurrying us along into it. I gave myself up for lost.