And now the avenue widened into an immense square, at the far end of which rose a stately edifice gleaming white in virgin marble among the gaily painted buildings surrounding it and its scarlet sward and gaily-flowering, green-foliaged shrubbery.  Toward this U-Dor led his prisoners and their guard to the great arched entrance before which a line of fifty mounted warriors barred the way.  When the commander of the guard recognized U-Dor the guardsmen fell back to either side leaving a broad avenue through which the party passed.  Directly inside the entrance were inclined runways leading upward on either side.  U-Dor turned to the left and led them upward to the second floor and down a long corridor.  Here they passed other mounted men and in chambers upon either side they saw more.  Occasionally there was another runway leading either up or down.  A warrior, his steed at full gallop, dashed into sight from one of these and raced swiftly past them upon some errand.

Nowhere as yet had Tara of Helium seen a man afoot in this great building; but when at a turn, U-Dor led them to the third floor she caught glimpses of chambers in which many riderless thoats were penned and others adjoining where dismounted warriors lolled at ease or played games of skill or chance and many there were who played at jetan, and then the party passed into a long, wide hall of state, as magnificent an apartment as even a princess of mighty Helium ever had seen.  The length of the room ran an arched ceiling ablaze with countless radium bulbs.  The mighty spans extended from wall to wall leaving the vast floor unbroken by a single column.  The arches were of white marble, apparently quarried in single, huge blocks from which each arch was cut complete.  Between the arches, the ceiling was set solid about the radium bulbs with precious stones whose scintillant fire and color and beauty filled the whole apartment.  The stones were carried down the walls in an irregular fringe for a few feet, where they appeared to hang like a beautiful and gorgeous drapery against the white marble of the wall.  The marble ended some six or seven feet from the floor, the walls from that point down being wainscoted in solid gold.  The floor itself was of marble richly inlaid with gold.  In that single room was a vast treasure equal to the wealth of many a large city.

But what riveted the girl’s attention even more than the fabulous treasure of decorations were the files of gorgeously harnessed warriors who sat their thoats in grim silence and immobility on either side of the central aisle, rank after rank of them to the farther walls, and as the party passed between them she could not note so much as the flicker of an eyelid, or the twitching of a thoat’s ear.

“The Hall of Chiefs,” whispered one of her guard, evidently noting her interest.  There was a note of pride in the fellow’s voice and something of hushed awe.  Then they passed through a great doorway into the chamber beyond, a large, square room in which a dozen mounted warriors lolled in their saddles.