“It has taken much longer than we had expected,” replied Kantos Kan. “The fact that we were compelled to maintain utter secrecy has handicapped us terribly. Zat Arras’ spies are everywhere. Yet, to the best of my knowledge, no word of our real plans has reached the villain’s ear.
“Tonight there lies about the great docks at Hastor a fleet of a thousand of the mightiest battleships that ever sailed above Barsoom, and each equipped to navigate the air of Omean and the waters of Omean itself. Upon each battleship there are five ten-man cruisers, and ten five-man scouts, and a hundred one-man scouts; in all, one hundred and sixteen thousand craft fitted with both air and water propellers.
“At Thark lie the transports for the green warriors of Tars Tarkas, nine hundred large troopships, and with them their convoys. Seven days ago all was in readiness, but we waited in the hope that by so doing your rescue might be encompassed in time for you to command the expedition. It is well we waited, my Prince.”
“How is it, Tars Tarkas,” I asked, “that the men of Thark take not the accustomed action against one who returns from the bosom of Iss?”
“They sent a council of fifty chieftains to talk with me here,” replied the Thark. “We are a just people, and when I had told them the entire story they were as one man in agreeing that their action toward me would be guided by the action of Helium toward John Carter. In the meantime, at their request, I was to resume my throne as Jeddak of Thark, that I might negotiate with neighboring hordes for warriors to compose the land forces of the expedition. I have done that which I agreed. Two hundred and fifty thousand fighting men, gathered from the ice cap at the north to the ice cap at the south, and representing a thousand different communities, from a hundred wild and warlike hordes, fill the great city of Thark tonight. They are ready to sail for the Land of the First Born when I give the word and fight there until I bid them stop. All they ask is the loot they take and transportation to their own territories when the fighting and the looting are over. I am done.”
“And thou, Hor Vastus,” I asked, “what has been thy success?”
“A million veteran fighting-men from Helium’s thin waterways man the battleships, the transports, and the convoys,” he replied. “Each is sworn to loyalty and secrecy, nor were enough recruited from a single district to cause suspicion.”
“Good!” I cried. “Each has done his duty, and now, Kantos Kan, may we not repair at once to Hastor and get under way before tomorrow’s sun?”
“We should lose no time, Prince,” replied Kantos Kan. “Already the people of Hastor are questioning the purpose of so great a fleet fully manned with fighting-men. I wonder much that word of it has not before reached Zat Arras. A cruiser awaits above at your own dock; let us leave at—” A fusillade of shots from the palace gardens just without cut short his further words.
Together we rushed to the balcony in time to see a dozen members of my palace guard disappear in the shadows of some distant shrubbery as in pursuit of one who fled. Directly beneath us upon the scarlet sward a handful of guardsmen were stooping above a still and prostrate form.
While we watched they lifted the figure in their arms and at my command bore it to the audience chamber where we had been in council. When they stretched the body at our feet we saw that it was that of a red man in the prime of life—his metal was plain, such as common soldiers wear, or those who wish to conceal their identity.
“Another of Zat Arras’ spies,” said Hor Vastus.
“So it would seem,” I replied, and then to the guard: “You may remove the body.”
“Wait!” said Xodar. “If you will, Prince, ask that a cloth and a little thoat oil be brought.”
I nodded to one of the soldiers, who left the chamber, returning presently with the things that Xodar had requested. The black kneeled beside the body and, dipping a corner of the cloth in the thoat oil, rubbed for a moment on the dead face before him. Then he turned to me with a smile, pointing to his work. I looked and saw that where Xodar had applied the thoat oil the face was white, as white as mine, and then Xodar seized the black hair of the corpse and with a sudden wrench tore it all away, revealing a hairless pate beneath.
Guardsmen and nobles pressed close about the silent witness upon the marble floor. Many were the exclamations of astonishment and questioning wonder as Xodar’s acts confirmed the suspicion which he had held.
“A thern!” whispered Tars Tarkas.
“Worse than that, I fear,” replied Xodar. “But let us see.”
With that he drew his dagger and cut open a locked pouch which had dangled from the thern’s harness, and from it he brought forth a circlet of gold set with a large gem—it was the mate to that which I had taken from Sator Throg.
“He was a Holy Thern,” said Xodar. “Fortunate indeed it is for us that he did not escape.”
The officer of the guard entered the chamber at this juncture.
“My Prince,” he said, “I have to report that this fellow’s companion escaped us. I think that it was with the connivance of one or more of the men at the gate. I have ordered them all under arrest.”
Xodar handed him the thoat oil and cloth.
“With this you may discover the spy among you,” he said.
I at once ordered a secret search within the city, for every Martian noble maintains a secret service of his own.
A half-hour later the officer of the guard
