permit you to see it. You will see what no other than the First Born and their slaves know the existence of—the subterranean entrance to the Holy Land, to the real heaven of Barsoom.
“It will be an excellent lesson for this daughter of the therns,” he added, “for she shall see the Temple of Issus, and Issus, perchance, shall embrace her.”
Phaidor’s head went high.
“What blasphemy is this, dog of a pirate?” she cried. “Issus would wipe out your entire breed an’ you ever came within sight of her temple.”
“You have much to learn, thern,” replied Xodar, with an ugly smile, “nor do I envy you the manner in which you will learn it.”
As we came on deck I saw to my surprise that the vessel was passing over a great field of snow and ice. As far as the eye could reach in any direction naught else was visible.
There could be but one solution to the mystery. We were above the south polar ice cap. Only at the poles of Mars is there ice or snow upon the planet. No sign of life appeared below us. Evidently we were too far south even for the great fur-bearing animals which the Martians so delight in hunting.
Xodar was at my side as I stood looking out over the ship’s rail.
“What course?” I asked him.
“A little west of south,” he replied. “You will see the Otz Valley directly. We shall skirt it for a few hundred miles.”
“The Otz Valley!” I exclaimed; “but, man, is not there where lie the domains of the therns from which I but just escaped?”
“Yes,” answered Xodar. “You crossed this ice field last night in the long chase that you led us. The Otz Valley lies in a mighty depression at the south pole. It is sunk thousands of feet below the level of the surrounding country, like a great round bowl. A hundred miles from its northern boundary rise the Otz Mountains which circle the inner Valley of Dor, in the exact centre of which lies the Lost Sea of Korus. On the shore of this sea stands the Golden Temple of Issus in the Land of the First Born. It is there that we are bound.”
As I looked I commenced to realize why it was that in all the ages only one had escaped from the Valley Dor. My only wonder was that even the one had been successful. To cross this frozen, wind-swept waste of bleak ice alone and on foot would be impossible.
“Only by air boat could the journey be made,” I finished aloud.
“It was thus that one did escape the therns in bygone times; but none has ever escaped the First Born,” said Xodar, with a touch of pride in his voice.
We had now reached the southernmost extremity of the great ice barrier. It ended abruptly in a sheer wall thousands of feet high at the base of which stretched a level valley, broken here and there by low rolling hills and little clumps of forest, and with tiny rivers formed by the melting of the ice barrier at its base.
Once we passed far above what seemed to be a deep canyon-like rift stretching from the ice wall on the north across the valley as far as the eye could reach. “That is the bed of the River Iss,” said Xodar. “It runs far beneath the ice field, and below the level of the Valley Otz, but its canyon is open here.”
Presently I descried what I took to be a village, and pointing it out to Xodar asked him what it might be.
“It is a village of lost souls,” he answered, laughing. “This strip between the ice barrier and the mountains is considered neutral ground. Some turn off from their voluntary pilgrimage down the Iss, and, scaling the awful walls of its canyon below us, stop in the valley. Also a slave now and then escapes from the therns and makes his way hither.
“They do not attempt to recapture such, since there is no escape from this outer valley, and as a matter of fact they fear the patrolling cruisers of the First Born too much to venture from their own domains.
“The poor creatures of this outer valley are not molested by us since they have nothing that we desire, nor are they numerically strong enough to give us an interesting fight—so we too leave them alone.
“There are several villages of them, but they have increased in numbers but little in many years since they are always warring among themselves.”
Now we swung a little north of west, leaving the valley of lost souls, and shortly I discerned over our starboard bow what appeared to be a black mountain rising from the desolate waste of ice. It was not high and seemed to have a flat top.
Xodar had left us to attend to some duty on the vessel, and Phaidor and I stood alone beside the rail. The girl had not once spoken since we had been brought to the deck.
“Is what he has been telling me true?” I asked her.
“In part, yes,” she answered. “That about the outer valley is true, but what he says of the location of the Temple of Issus in the centre of his country is false. If it is not false—” she hesitated. “Oh it cannot be true, it cannot be true. For if it were true then for countless ages have my people gone to torture and ignominious death at the hands of their cruel enemies, instead of to the beautiful Life Eternal that we have been taught to believe Issus holds for us.”
“As the lesser Barsoomians of the outer world have been lured by you to the terrible Valley Dor, so may it be that the therns themselves have been lured by the First Born to an equally horrid fate,” I suggested. “It would be a stern and awful retribution, Phaidor; but a just one.”
“I cannot believe it,” she said.
“We shall see,” I answered, and then we fell silent again for we were rapidly approaching the black mountains, which in some indefinable way seemed linked with the answer to our problem.
As we neared the dark, truncated cone the vessel’s speed was diminished until we barely moved. Then we topped the crest of the mountain and below us I saw yawning the mouth of a huge circular well, the bottom of which was lost in inky blackness.
The diameter of this enormous pit was fully a thousand feet. The walls were smooth and appeared to be composed of a black, basaltic rock.
For a moment the vessel hovered motionless directly above the centre of the gaping void, then slowly she began to settle into the black chasm. Lower and lower she sank until as darkness enveloped us her lights were thrown on and in the dim halo of her own radiance the monster battleship dropped on and on down into what seemed to me must be the very bowels of Barsoom.
For quite half an hour we descended and then the shaft terminated abruptly in the dome of a mighty subterranean world. Below us rose and fell the billows of a buried sea. A phosphorescent radiance illuminated the scene. Thousands of ships dotted the bosom of the ocean. Little islands rose here and there to support the strange and colourless vegetation of this strange world.
Slowly and with majestic grace the battleship dropped until she rested on the water. Her great propellers had been drawn and housed during our descent of the shaft and in their place had been run out the smaller but more powerful water propellers. As these commenced to revolve the ship took up its journey once more, riding the new element as buoyantly and as safely as she had the air.
Phaidor and I were dumbfounded. Neither had either heard or dreamed that such a world existed beneath the surface of Barsoom.
Nearly all the vessels we saw were war craft. There were a few lighters and barges, but none of the great merchantmen such as ply the upper air between the cities of the outer world.
“Here is the harbour of the navy of the First Born,” said a voice behind us, and turning we saw Xodar watching us with an amused smile on his lips.
“This sea,” he continued, “is larger than Korus. It receives the waters of the lesser sea above it. To keep it from filling above a certain level we have four great pumping stations that force the oversupply back into the reservoirs far north from which the red men draw the water which irrigates their farm lands.”
A new light burst on me with this explanation. The red men had always considered it a miracle