Bang! bang! bang! Heavens, what a noise it was! The car must have seemed a flying volcano. And it woke them up! The sleeping city poured forth its millions to gaze and wonder. Surely they had never heard such a thundering. Within five minutes we saw them on the roofs and in the towers. Many were staring at us through a kind of opera glasses which they had. Then from a dozen aerial pavilions the colors broke forth and quivered through the air. "Saluting us!" exclaimed Jack, delighted. "Asking one another questions, rather," said Edmund. They certainly asked enough of them, and I wondered what answers they returned. "Probably they think we're off for good," said I. "And aren't we?" asked Henry anxiously. "Not yet," Edmund replied, and Henry's countenance fell. The car turned and approached the great tower again. We swept round it within a hundred yards, and could see the amazement in the faces that watched us. But if they were astonished they were not terror-stricken. Within ten minutes twenty air ships were swiftly approaching us. Edmund allowed them to come within a few yards, and then darted away, rushed round the whole city like a flying cloud, and finally rose straight up with dizzying velocity, which made the vast metropolis shrink to a colored patch, as if we had been viewing it through the wrong end of a telescope. "I'll go right up through the cloud dome now," he said. "Nothing could more impress them with a sense of our power than that; and when we come back again they will know that we have no fear, and the very act will be a proof of origin from the sky." When we were in the midst of the mighty curtain of vapor, I was interested in noticing the peculiar quality of the light that surrounded us. We seemed to be immersed in a rose-pink mist. "I do not understand," I said to Edmund, "how this dome is maintained at so great an elevation, and in apparent independence of the rain clouds which sometimes form beneath. No rain ever falls from the dome itself, and yet it consists of true clouds." "I think," he replied, "that the dome is due to vapors which assemble at a general level of condensation, and do not form raindrops, partly because of the absence of dust to serve as nuclei at this great height, and partly because of some peculiar electrical condition of the air, arising from the relative nearness of Venus to the sun, which prevents the particles of vapor from gathering into drops heavy enough to fall. You will observe that there is a peculiar inner circulation in the vapor surrounding us, marked by ascending and descending currents which are doubtless limited by the upper and lower surfaces of the dome. The true rain clouds form in the space beneath the dome, where there seems to be an independent circulation of the winds."