Redgrave was standing with his hand on the steering-wheel, looking more serious than he had done so far during the voyage. Zaidie stood beside him with a powerful binocular telescope watching, with cheeks a little paler than usual, the movements of the Martian air-ships. She counted twenty-five vessels rising round them in a wide circle.

"I don't like the idea of a whole fleet coming up," said Redgrave, as he watched them rising, and the ring narrowing round the still motionless Astronef. "If they only wanted to know who and what we are, or to leave their cards on us, as it were, and bid us welcome to the world, one ship could have done that just as well as a fleet. This lot coming up looks as if they wanted to get round and capture us."

"It does look like it," said Zaidie, with her glasses fixed on the nearest of the vessels; "and now I can see they've guns too, something like ours, and perhaps, as you said just now, they may have explosives that we don't know anything about. Oh, Lenox, suppose they were able to smash us up with a single shot."

"You needn't be afraid of that, dear," he said, putting his arm round her shoulders. "Of course it's perfectly natural that they should look upon us with a certain amount of suspicion, dropping like this on them from the stars. Can you see anything like men on board them yet?"

"No, they're all closed in just as we are," she replied; "but they've got conning-towers like this, and something like windows along the sides. That's where the guns are, and the guns are moving. They're pointing them at us. Lenox, I'm afraid they're going to shoot."

"Then we may as well spoil their aim," he said, pressing one of the buttons on the signal-board three times, and then once more after a little interval.

In obedience to the signal Murgatroyd turned on the repulsive force to half power, and the Astronef leapt up vertically a couple of thousand feet. Then Redgrave pressed the button once and she stopped. Another signal set the propellers in motion, and as she sprang forward across the circle formed by the Martian air-ships, they looked down and saw that the place which they had just left was occupied by a thick greenish-yellow cloud.

"Look, Lenox, what on earth is that?" exclaimed Zaidie, pointing down to it.

"What on Mars would be nearer the point, dear," he said, with what she thought a somewhat vicious laugh. "That, I'm afraid, means anything but a friendly reception for us. That cloud is one of two things—it's the smoke of the explosion of twenty or thirty shells, or else it's made of gases intended to either poison us or make us insensible, so that they can take possession of the ship. In either case I should say that the Martians are not what we should call gentlemen."

"I should think not," she said angrily. "They might at least have taken us for friends till they had proved us enemies, which they wouldn't have done. Nice sort of hospitality that, considering how far we've come, and we can't shoot back, because we haven't got the ports open."