"And I promise you," I said, "that your money shall be used for that purpose, and I fully believe that what we have learned, will be the greatest boon that could be conferred upon the people of the outer world. In the name of humanity I accept the trust you place in my hands and I shall see that your gold shall be used to emancipate your fellow workmen from the tyranny now imposed upon them by human greed."

As we sped down the valley a glass of small magnifying power brought the Silver King into view gliding northward on the bay like a thing of life. I timed the Eolus so as to join the excursion on this floating crystal palace when it passed out upon the ocean. As we slowly settled in the place that had been set apart for us, the crowds gathered around and I was kept busy answering questions and explaining the use of the various attachments which experience had demonstrated to be essential to the successful navigation of the air in the external world.

This was an excursion long to be remembered. The crowds of elegantly dressed people who thronged the decks of the Silver King had gathered from every part of the concave to accompany us to the northern extremity of Altruria, a distance of about 7,000 miles from the mouth of the Cocytas. It was intended that we should cover this distance in seven days, which would make the actual time of my departure on my aerial voyage, the morning of the twenty-third of May.

As the excursion was to last one full week a series of entertainments was provided to make the time pass pleasantly and profitably. Music, dancing and theatrical performances were interspersed with lectures and social converse touching upon leading subjects of thought and action. The program made this journey one ceaseless round of enjoyment. The records of the conversations preserved by my locket phonograph, I regard as the most instructive and valuable historical, scientific and ethical lessons I have ever listened to, and which I hope to be able to give to the world when the occasion requires.

On the evening of the twenty-second, Oqua called my attention to the kaleidoscopic lights on the Watch Tower which was to be the point where I would bid farewell to my Altrurian friends as well as my comrades of the Ice King. In the pitch dark nights of the outer world such an exhibition would have been beautiful and grand beyond description but even here, with the reflected light which made the darkest nights comparatively light, the scene through our glasses, of the ever changing views was such, that I never tired of observing them. These lights presented all the prismatic hues of the rainbow with the intermediate shades, continually changing from one geometrical figure to another, but always coming around to a five pointed star which is the symbol and sign manual of the material civilization of this inner world; the changing colors kept pace with the changing geometrical figures, always returning to the five pointed star, until it had been reproduced in each of the seven prismatic colors.

This seemed to be the regular order, but suddenly it was broken, by giving only the stars in the seven different colors in a rapid succession, until they resolved themselves into a circle, revolving swiftly on its axis. Seeing my interest in this change, Oqua said:

"The keeper has just noticed our approach and is operating the keys to send us a welcome in the name of the entire concave. This welcome will be repeated by every signal station on this parallel around the world. The principal use of these lights is to send messages by means of the changing figures, which are well understood by the people of this country, and especially those who navigate these northern waters. The one great drawback to their use, is, that they must be observed through glasses which are especially adapted to this purpose. Here in this inner world where it is never absolutely dark we cannot take the full advantage of these light signals, without the use of external appliances."

As she spoke she set the great telescope through which I was looking to revolving so as to take in a zone all around the concave, and I observed other signal lights responding in regular order along this zone.

"These signal stations," continued Oqua, "are under the control of the Life Saving Service, and the keepers with these glasses are always on the lookout for mariners who may be in danger, and their signal messages notify any patrols that may observe them of the nature of the danger as well as the locality of the endangered. Had the Ice King come within the radius of any of these Signal Stations at almost any other time, you would certainly have been discovered and rescued. But at the time you came into these waters the fog had effectually checkmated our observations. For this reason we are agitating for the extension of this system to medial and equatorial latitudes, as a time has come when it seems likely that other ships like the Ice King, may drift into these placid waters where sails are useless, and hence be powerless to save themselves from certain destruction by being carried into the southern verge on ocean currents which never touch the land."

On the morning of the twenty-third when I awoke, the Silver King was lying at the wharf and I had a close view of the Watch Tower and its ever changing signal lights. It was more like a lofty building than a mere tower. It was a hexagon in shape, two hundred and fifty feet in height with a large platform on top, in the center of which was a huge column like the body of a tall tree branching out into numerous arms, each supporting a series of electric lights. The mechanical contrivance by which these lights were controlled was automatic, but as occasion required could be changed by the watchman in the observatory to signal any message required to all whom it might concern. This building from outside to outside was one hundred feet at the base and fifty feet at the top, while the inside diameter was the same from top to bottom. On the outside was a spiral stairway reaching from the ground to the platform at the top and in the center was an electric elevator, connected with each of the twenty stories.