By nine o'clock Lennard was in the equatorial chamber of the observatory, taking his first observations since he had left for Portsmouth the week before. The ghostly shape pictured on the great reflector was bigger and brighter now, although, to his great comfort, none of the scientific papers had made any mention of its discovery by other observers. When he had noted its exact position, he went to his desk and plunged into a maze of calculations. Precisely at eleven there was a tap at the door and Mr Parmenter and Lord Westerham came in. Lord Westerham, as the guest, had the first look at the approaching World Peril; then Mr Parmenter took a long squint into the eye-piece and then they sat down, and Lennard told Mr Parmenter, in the cold, precise language of science, the story which he had already told to Auriole and Lord Westerham. The millionaire, who had listened with an attention that even he had never given to any subject before, smoked in silence for a few moments after Lennard had finished, and then he said quietly: "Well, I reckon that's about the biggest order that two or three human beings have ever been called upon to fill. One thing's certain. It'd make these fighting fellows feel pretty foolish if they could be got to believe it, which they couldn't. No disrespect to you, Lord Westerham, because I take it you do believe it." "Certainly I do," he replied. "Lennard was never known to make a mistake in figures, and I am perfectly certain that he would not make any in working out such a terrific problem as this. I think I may also say that I have equal confidence in his plan for saving humanity from the terrible fate which threatens it." "That's good hearing," said Mr Parmenter, drily. "Personally, I don't quite feel that I've finished up with this old world yet, and if it's a question of dollars--as far as I'm concerned, as I've got a few millions hanging around loose, I might as well use them to help to save the human race from being burnt to death as to run corners and trusts, which won't be much use anyhow if we can't stop this comet, or whatever it is. Now, Mr Lennard, what's your plan for the scientific salvation of the world?" "There is nothing new about the idea," replied Lennard, "except its application to the present circumstances. Of course you have read Jules Verne's _Journey to the Moon_? Well, my plan is simply to do the same thing on a much bigger scale, only instead of firing men and dogs and chickens out of my cannon, I am going to fire something like a ton and a half of explosives. "The danger is in the contact of the nucleus of the comet with the earth's atmosphere. If that can be prevented there is no further cause for alarm; so, to put the matter quite shortly, my projectile will have an initial velocity of ten miles a second, and therefore a range that is practically infinite, for that velocity will carry it beyond the sphere of the earth's attraction.