I loved a ship and it tore my heart to see that staunch craft fall apart in mid-air as its metal parts disappeared before the disintegrating ray.

But that was not all, as wood and leather and fabric sank with increasing swiftness toward the ground, brave warriors hurtled to their doom. It was horrifying.

I am a true son of Barsoom; I joy in battle; armed conflict is my birthright, and war the goal of my ambition, but this was not war; it was murder.

I took no joy in my victory as I had when I laid Yo Seno low in mortal combat, and now, more than ever, was I determined that this frightful instrument of destruction must in some way be forever banned upon Barsoom. War with such a weapon completely hidden by the compound of invisibility would be too horrible to contemplate. Navies, cities, whole nations could be wiped out by a single battleship thus equipped. The mad dream of Phor Tak might easily come true and a maniac yet rule all Barsoom.

But meditation and philosophizing were not for me at this time. I had work to do and though it necessitated wiping out all Tjanath, I purposed doing it.

Again the sirens and the gongs raised their wild alarm; again patrol boats gathered. I felt that I must depart until after nightfall, for I had no stomach to again be forced to turn that deadly rifle upon my fellow men while any alternative existed.

As I started to turn back to the controls my eyes chanced to fall upon one of the stern ports and, to my surprise, I saw that the shutter was raised. How this occurred I do not know; it has always remained a mystery, but at least it explained how it had been possible for the patrol boat to follow me. That round port hole moving through the air must have filled them with wonder, but at the same time it was a clue to follow and though they did not understand it, they, like the brave warriors that they were, followed it in the line of their duty.

I quickly closed it, and, after examining the others and finding them all closed, I was now confident that, with the exception of the small eye of my periscope, I was entirely surrounded by invisibility and hence under no immediate necessity for leaving the vicinity of the palace, as I could easily maneuver the ship to keep out of the way of the patrol boats that were now again congregating near the royal hangar.

I think they were pretty much upset by what had happened and evidently there was no unanimity of opinion as to what should be done. The patrol ships hovered about, evidently waiting orders, and it was not until almost dark that they set out in a systematic search of the air above the city; nor had they been long at this before I understood their orders as well as though I had read them myself. The lower ships moved at an altitude of not over fifty feet above the higher buildings; two hundred feet above these moved the second line. The ships at each level cruised in a series of concentric circles and in opposite directions, thereby combing the air above the city so closely that no enemy ship could possibly approach. The air below was watched by a thousand eyes; at every point of vantage sentries were on watch and upon the roof of every public building guns appeared as if by magic.

I began to be quite apprehensive that even the small eye of my periscope might not go undetected and so I dropped my ship into a little opening among some lofty trees that grew within the palace garden, and here I waited some twenty feet above the ground, my periscope completely screened from view, unseen and, in consequence, myself unseeing, until the swift night of Barsoom descended upon Tjanath; then I rose slowly from my leafy retreat.