"I am impressing this upon you because it suggests to my mind a possible clue to the general location of the city of these new enemies of Helium. I am convinced that this is but the first blow, since any navy armed with such guns could easily hold Helium at its mercy, and few indeed are the cities of Barsoom outside the empire that would not seize with avidity upon any instrument that would give them the sack of the Twin Cities.

"For some time now we have been deeply concerned by the increasing number of missing ships of the navy. In nearly all instances these were ships engaged in charting air currents and recording atmospheric pressures in different parts of Barsoom far from the empire, and recently it has become apparent that the vast majority of these ships which never return were those cruising in the southern part of the western hemisphere, an unhospitable portion of our planet concerning which we have unfortunately but little knowledge owing to the fact that we have developed no trade with the unfriendly people inhabiting this vast domain.

"This, Hadron of Hastor, is only a suggestion; only the vaguest of clues, but I offer it to you for what it is worth. A thousand one-man scout fliers will be dispatched between now and noon tomorrow in search of the abductors of Sanoma Tora; nor will these be all. Cruisers and battleships will take the air as well, for Helium must know what city or what nation has developed a weapon of destruction such as that used above Helium this night.

"It is my belief that the weapon is of very recent invention and that whatever power possesses it, must be bending every effort to perfect it and produce it in such quantities as to make them masters of the world. I have spoken. Go, and may fortune be with you."

You may believe that I lost no time in setting out upon my mission now that I had authority from John Carter. Going to my quarters I hastened my preparation for departure, which consisted principally of making a careful selection of weapons and of exchanging a rather ornate harness I had been wearing for one of simpler design and of heavier and more durable leather. My fighting harness is always the best and plainest that I can procure and is made for me by a famous harnessmaker of Lesser Helium. My equipment of weapons was standard, consisting of a long sword, a short sword, a dagger and a pistol. I also provided myself with extra ammunition and a supply of the concentrated ration used by all Martian fighting men.

As I gathered together these simple necessities which, with a single sleeping fur, would constitute my equipment, my mind was given over to consideration of various explanations for the disappearance of Sanoma Tora. I searched my brain for any slightest memory that might suggest an explanation, or point toward the possible identity of her abductors. It was while thus engaged that I recalled her reference to the jeddak, Tul Axtar of Jahar nor was there within the scope of my recollection any other incident that might point a clue. I distinctly recalled the emissary of Tul Axtar who had visited the court of Helium not long since. I had heard him boast of the riches and power of his jeddak and the beauty of his women. Perhaps, then, it might be as well to search in the direction of Jahar as elsewhere, but before departing I determined once again to visit the palace of Tor Hatan and question the slave who had been the last to see Sanoma Tora.

As I was about to set out, another thought occurred to me. I knew that in the Temple of Knowledge might be found either illustrations or replicas of the metal and harness of every nation of Barsoom, concerning which aught was known in Helium. I therefore repaired immediately to the temple and with the assistance of a clerk I presently found a drawing of the harness and metal of a warrior of Jahar. By an ingenious photostatic process a copy of this illustration was made for me in a few seconds, and with this I hastened to the palace of Tor Hatan.

The odwar was absent, having gone to the palace of the Warlord, but his major-domo summoned the slave, Kal Tavan, who had witnessed the abduction of Sanoma Tora and grappled with one of her abductors.

As the man approached I noticed him more particularly than I had previously. He was well built, with clear cut features and that air which definitely bespeaks the fighting man.

"You said, I believe, that you were from Kobol?" I asked.

"I was born in Tjanath," he replied. "I had a wife and daughter there. My wife fell before the hand of an assassin and my daughter disappeared when she was very young. I never knew what became of her. The familiar scenes of Tjanath reminded me of happier days and so increased my grief that I could not remain. I turned panthan then and sought service in other cities; thus I served in Kobol."

"And there you became familiar with the harness and the metal of many cities and nations?" I asked.

"Yes," he replied.

"What harness and metal are these?" I demanded, handing him the copy of the illustration I had brought from the Temple of Knowledge.

He examined it briefly and then his eyes lighted with recognition. "It is the same," he said. "It is identical."

"Identical with what?" I asked.

"With the harness worn by the warrior with whom I grappled at the time that Sanoma Tora was stolen," he replied.

"The identity of the abductors of Sanoma Tora is established," I said, and then I turned to the major-domo. "Send a messenger at once to the Warlord informing him that the daughter of Tor Hatan was stolen by men from Jahar and that it is my belief that they are the emissaries of Tul Axtar, Jeddak of Jahar," and without more words I turned and left the palace, going directly to my flier.

As I arose above the towers and domes and lofty landing stages of Greater Helium, I turned the prow of my flier toward the west and opening wide the throttle sped swiftly through the thin air of dying Barsoom toward that great unknown expanse of her remote southwestern hemisphere, somewhere within the vast reaches of which lay Jahar toward which, I was now convinced, Sanoma Tora was being borne to become not the Jeddara of Tul Axtar, but his slave, for jeddaks take not their jeddaras by force upon Barsoom.

I believed that I understood the explanation of Sanoma Tora's abduction, an explanation that would have caused her intensive chagrin since it was far from flattery. I believed that Tul Axtar's emissary had reported to his master the charm and beauty of the daughter of Tor Hatan, but that she was not of sufficiently noble birth to become his jeddara, and so he had adopted the only expedient by which he might possess her. My blood boiled at the suggestion, but my judgment told me that it was doubtless right.

During the past few years-I should say the last ten or twenty- greater strides have been taken in the advancement of aeronautics than had been previously achieved in the preceding five hundred years.

The perfection of the destination control compass by Carthoris of Helium is considered by many authorities to have marked the beginning of a new era of invention. For centuries we seemed to have stagnated in a quiet pond of self-sufficiency, as though we had reached the acme of perfection beyond which it was useless to seek for improvement upon what we considered the highest possible achievements of science.

Carthoris of Helium, inheriting the restless, inquiring mind of his earth-born sire, awoke us. Our best minds took up the challenge and the result was rapid improvement in design and construction of air ships of all classes, leading to a revolution in motor building.

We had thought that our light, compact, powerful radium motors never could be improved upon and that man never would travel, either safely or economically, at a speed greater than that attained by our swift one-man scout fliers-about eleven hundred haads per zode (Note: Approximately one hundred and sixty-six earth miles per hour), when a virtually unknown padwar in the navy of Helium announced that he had perfected a motor that, with one-half the weight of our present motors, would develop twice the speed.