It was heavy, this vapour, heavier than the densest smoke, so that, after the first tumultuous uprush and outflow of its impact, it sank down through the air and poured over the ground in a manner rather liquid than gaseous, abandoning the hills, and streaming into the valleys and ditches and watercourses even as I have heard the carbonic-acid gas that pours from volcanic clefts is wont to do. And where it came upon water some chemical action occurred, and the surface would be instantly covered with a powdery scum that sank slowly and made way for more. The scum was absolutely insoluble, and it is a strange thing, seeing the instant effect of the gas, that one could drink without hurt the water from which it had been strained. The vapour did not diffuse as a true gas would do. It hung together in banks, flowing slug- gishly down the slope of the land and driving reluctantly before the wind, and very slowly it combined with the mist and moisture of the air, and sank to the earth in the form of dust. Save that an unknown element giving a group of four lines in the blue of the spectrum is concerned, we are still entirely ignorant of the nature of this substance.

Once the tumultuous upheaval of its its dispersion was over, the black smoke clung so closely to the ground, even before its precipitation, that fifty feet up in the air, on the roofs and upper stories of high houses and on great trees, there was a chance of escaping its poison altogether, as was proved even that night at Street Cobham and Ditton.

The man who escaped at the former place tells a wonderful story of the strangeness of its coiling flow, and how he looked down from the church spire and saw the houses of the village rising like ghosts out of its inky nothingness. For a day and a half he remained there, weary, starving and sun-scorched, the earth under the blue sky and against the prospect of the distant hills a velvet-black expanse, with red roofs, green trees, and, later, black-veiled shrubs and gates, barns, out- houses, and walls, rising here and there into the sunlight.

But that was at Street Cobham, where the black vapour was allowed to remain until it sank of its own accord into the ground. As a rule the Martians, when it had served its purpose, cleared the air of it again by wading into it and directing a jet of steam upon it.

This they did with the vapour banks near us, as we saw in the starlight from the window of a deserted house at Upper Halliford, whither we had returned. From there we could see the searchlights on Richmond Hill and Kingston Hill going to and fro, and about eleven the windows rattled, and we heard the sound of the huge siege guns that had been put in position there. These continued intermittently for the space of a quarter of an hour, sending chance shots at the invisible Martians at Hampton and Ditton, and then the pale beams of the electric light vanished, and were replaced by a bright red glow.

Then the fourth cylinder fell--a brilliant green meteor--as I learned afterwards, in Bushey Park. Before the guns on the Richmond and Kingston line of hills began, there was a fitful cannonade far away in the southwest, due, I believe, to guns being fired haphazard before the black vapour could over- whelm the gunners.

But these two, Sally whispered, these two coming now (and really she must go, if Clarissa did not come soon), this distinguished-looking man and his rather common-looking wife who had been talking to Richard—what could one know about people like that?

“That they’re damnable humbugs,” said Peter, looking at them casually. He made Sally laugh.

But Sir William Bradshaw stopped at the door to look at a picture. He looked in the corner for the engraver’s name. His wife looked too. Sir William Bradshaw was so interested in art.

When one was young, said Peter, one was too much excited to know people. Now that one was old, fifty-two to be precise (Sally was fifty-five, in body, she said, but her heart was like a girl’s of twenty); now that one was mature then, said Peter, one could watch, one could understand, and one did not lose the power of feeling, he said. No, that is true, said Sally. She felt more deeply, more passionately, every year. It increased, he said, alas, perhaps, but one should be glad of it—it went on increasing in his experience. There was some one in India. He would like to tell Sally about her. He would like Sally to know her. She was married, he said. She had two small children. They must all come to Manchester, said Sally—he must promise before they left.

There’s Elizabeth, he said, she feels not half what we feel, not yet. But, said Sally, watching Elizabeth go to her father, one can see they are devoted to each other. She could feel it by the way Elizabeth went to her father.

For her father had been looking at her, as he stood talking to the Bradshaws, and he had thought to himself, Who is that lovely girl? And suddenly he realised that it was his Elizabeth, and he had not recognised her, she looked so lovely in her pink frock! Elizabeth had felt him looking at her as she talked to Willie Titcomb. So she went to him and they stood together, now that the party was almost over, looking at the people going, and the rooms getting emptier and emptier, with things scattered on the floor. Even Ellie Henderson was going, nearly last of all, though no one had spoken to her, but she had wanted to see everything, to tell Edith. And Richard and Elizabeth were rather glad it was over, but Richard was proud of his daughter. And he had not meant to tell her, but he could not help telling her. He had looked at her, he said, and he had wondered, Who is that lovely girl? and it was his daughter! That did make her happy. But her poor dog was howling.

“Richard has improved. You are right,” said Sally. “I shall go and talk to him. I shall say goodnight. What does the brain matter,” said Lady Rosseter, getting up, “compared with the heart?”

“I will come,” said Peter, but he sat on for a moment. What is this terror? what is this ecstasy? he thought to himself. What is it that fills me with extraordinary excitement?

It is Clarissa, he said.

For there she was.