Here, then, he stood and stared.

It was very quiet up here; but he listened with considerable curiosity to the strange humming sound that filled the air, rising and falling, as of a beehive. At first he thought it was the working of engines in the ship; but he presently perceived it to be the noise of the streets rising from below; and it was then that he saw for the first time that foot-passengers were almost entirely absent, and that practically the whole roadway, so far as he could make out from the high elevation at which he stood, was occupied by cars of all descriptions going this way and that. They sounded soft horns as they went, but they bore no lights, for the streets were as light as day with a radiance that seemed to fall from beneath the eaves of all the buildings that lined them. This effect of lighting had a curious result of making the city look as if it were seen through glass or water—a beautifully finished, clean picture, moving within itself like some precise and elaborate mechanism.

He turned round at a touch on his arm.

"You would like to see the start, perhaps," said the old priest. "We are a little late to-night. The country mails have only just arrived. But we shall be off directly now. Come this way."

The upper deck, as the two turned inwards, presented an extremely pleasant and reassuring picture. From stem to stern it ran clear, set out, however, with groups of tables and chairs clamped to the floor, at which sat a dozen parties or so, settling themselves down comfortably. There were no funnels, no bridge, no break at all to the delightful vista. The whole was lighted by the same device as were the streets, for round the upper edges of the transparent walls that held out the wind shone a steady, even glow from invisible lights.

In the very centre of the deck, however, was a low railing that protected the head of a staircase, and down this well the two looked.

"Shall I explain?" asked the old priest, smiling. "This is the latest model, you know. It has not been in use for more than a few months."

The other nodded.

"Tell me everything, please."

"Well, look right down there, below the second flight. The first flight leads to the second-class deck, and the flight below to the working parts of the ship. Now do you see that man's head, straight in the middle, in the bright light?—yes, immediately under. Well, that's the first engineer. He's in a glass compartment, you see, and can look down passages in every direction. The gas arrangements are all in front of him, and the——"