

Zoof with Servadac also soon notice that the alternation of day and night is shortened to six hours, that east and west have changed sides, and that water begins to boil at 66 ☌ (151 ☏), from which they rightly deduce that the atmosphere became thinner and pressure dropped. They first notice weight loss: Captain Servadac's adjutant Ben Zoof, to his amazement, jumps 12 m (39 ft) high. These people do not realize at first what has happened, and consider the collision an earthquake. On the territory that is carried away by the comet there remain a total of thirty-six people of French, English, Spanish and Russian nationality. The disaster occurs on January 1 of the year 188x in the area around Gibraltar. The story starts with a comet called Gallia, that touches the Earth in its flight and collects a few small chunks of it. John Herschel observes Comet Halley from his observatory in Cape Town in 1835 (illustration from the book).
