The fiery mountain must have been situated about the 45° south latitude on the invisible part of the disc; but, to Barbicane's great displeasure, the curve which the projectile was describing was taking it far from the point indicated by the eruption. Thus he could not determine its nature exactly. Half an hour after being sighted, this luminous point had disappeared behind the dark horizon; but the verification of this phenomenon was of considerable consequence in their selenographic studies. It proved that all heat had not yet disappeared from the bowels of this globe; and where heat exists, who can affirm that the vegetable kingdom, nay, even the animal kingdom itself, has not up to this time resisted all destructive influences? The existence of this volcano in eruption, unmistakably seen by these earthly savants, would doubtless give rise to many theories favourable to the grave question of the habitability of the moon. Barbicane allowed himself to be carried away by these reflections. He forgot himself in a deep reverie in which the mysterious destiny of the lunar world was uppermost. He was seeking to combine together the facts observed up to that time, when a new incident recalled him briskly to reality. This incident was more than a cosmical phenomenon; it was a threatened danger, the consequences of which might be disastrous in the extreme. Suddenly, in the midst of the ether, in the profound darkness, an enormous mass appeared. It was like a moon, but an incandescent moon whose brilliancy was all the more intolerable as it cut sharply on the frightful darkness of space. This mass, of a circular form, threw a light which filled the projectile. The forms of Barbicane, Nicholl, and Michel Ardan, bathed in its white sheets, assumed that livid spectral appearance which physicians produce with the fictitious light of alcohol impregnated with salt. Illustration: A PREY TO FRIGHTFUL TERROR. "By Jove!" cried Michel Ardan, "we are hideous. What is that ill-conditioned moon?" "A meteor," replied Barbicane. "A meteor burning in space?" "Yes." This shooting globe suddenly appearing in shadow at a distance of at most 200 miles, ought, according to Barbicane, to have a diameter of 2000 yards. It advanced at a speed of about one mile and a half per second. It cut the projectile's path and must reach it in some minutes. As it approached it grew to enormous proportions. Imagine, if possible, the situation of the travellers! It is impossible to describe it. In spite of their courage, their _sang-froid_, their carelessness of danger, they were mute, motionless with stiffened limbs, a prey to frightful terror. Their projectile, the course of which they could not alter, was rushing straight on this ignited mass, more intense than the open mouth of an oven. It seemed as though they were being precipitated towards an abyss of fire.