"My goodness, captain," exclaimed Michel Ardan, "that hypothesis is worthy of my brain! It cannot be a serious one. For have we not been half annihilated by the shock? Did I not recall you to life? Is not the president's shoulder still bleeding from the blow it has received?" "Granted," replied Nicholl; "but one question." "Well, captain?" "Did you hear the detonation, which certainly ought to be loud?" "No," replied Ardan, much surprised; "certainly I did not hear the detonation." "And you, Barbicane?" "Nor I, either." "Very well," said Nicholl. "Well now," murmured the president "why did we not hear the detonation?" The three friends looked at each other with a disconcerted air. It was quite an inexplicable phenomenon. The projectile had started, and consequently there must have been a detonation. "Let us first find out where we are," said Barbicane, "and let down the panel." This very simple operation was soon accomplished. The nuts which held the bolts to the outer plates of the right-hand scuttle gave way under the pressure of the English wrench. These bolts were pushed outside, and buffers covered with india-rubber stopped up the holes which let them through. Immediately the outer plate fell back upon its hinges like a porthole, and the lenticular glass which closed the scuttle appeared. A similar one was let into the thick partition on the opposite side of the projectile, another in the top of the dome, and finally a fourth in the middle of the base. They could, therefore, make observations in four different directions: the firmament by the side and most direct windows, the earth or the moon by the upper and under openings in the projectile. Barbicane and his two companions immediately rushed to the uncovered window. But it was lit by no ray of light. Profound darkness surrounded them, which, however, did not prevent the president from exclaiming,— "No, my friends, we have not fallen back upon the earth; no, nor are we submerged in the Gulf of Mexico. Yes! we are mounting into space. See those stars shining in the night, and that impenetrable darkness heaped up between the earth and us!" "Hurrah! hurrah!" exclaimed Michel Ardan and Nicholl in one voice. Indeed, this thick darkness proved that the projectile had left the earth, for the soil, brilliantly lit by the moonbeams, would have been visible to the travellers, if they had been lying on its surface. This darkness also showed that the projectile had passed the atmospheric strata, for the diffused light spread in the air would have been reflected on the metal walls, which reflection was wanting. This light would have lit the window, and the window was dark. Doubt was no longer possible; the travellers had left the earth. Illustration: IT WAS AN ENORMOUS DISC. "I have lost," said Nicholl. "I congratulate you," replied Ardan. "Here are the nine thousand dollars," said the captain, drawing a roll of paper dollars from his pocket.