Again the .45 thundered, lighting the darkened cell with a brief orange flame. A noise like the furious trumpeting of a dozen elephants nearly blew Nelson flat as the wounded monster drew back its head, but the respite promised to be short, for the other reptiles only re-doubled their horrid, cannibalistic rending of the carca.s.s. When the barrier was removed there would be a general rush which the shaken aviators could not hope to stay.

Suddenly, Alden uttered a low shout and pointed to the small, oval door which had, up to this point, remained securely bolted and shut.

It was swinging gradually open, rimmed with a strong reddish light.

Wide-eyed, and with black hair streaming lank over his forehead, Nelson, in the act of reloading, swung about to meet this new menace.

h.e.l.l! What point was there in prolonging the pitiful struggle? What was happening?

Slowly, the door swung back, and a rosy glow lit the opening, a glow that became as strong as the gleam of a spotlight. Then, slowly, a glittering, green-crested helmet of highly polished bronze appeared, and, under it, Hero Giles' familiar features, now distorted by a terrible fear. The blue eyes seemed enormous. "Quickly!" he called.

"Quick or ye are lost!"

Unbelieving of the reprieve, both the aviators stared an instant at that martial figure clad in brazen armor liberally studded with enormous diamonds and emeralds, then leaped forward with the speed of desperation, for from behind came a fierce squalling from the allosauri. As he darted towards the door Nelson had a glimpse of the carca.s.s blocking the door commencing to slip sidewise.

Alden was already out and Nelson sped through the door barely in time to escape the razor-sharp talons of the foremost allosaurus as it scrambled into the deserted cell with a resounding bellow of disappointed fury.

CHAPTER VIII

As the door clanged shut, drowning out the allosauri's furious screams, both aviators, shaken to the depths of their beings, could do nothing but stare about them in surprise. Completely surrounding and protecting the exit stood a double rank of hoplites in bronze armor.

Like unreal automata, they remained utterly motionless, fixed in the various postures of an ancient Macedonian phalanx, their broad backs gleaming dully in the light of the neon flares. As in a dream, Nelson recognized on top of each spearsman's casque the graceful Atlantean military crest--a metal dolphin from the back of which sprouted a series of bright blue feathers, arranged like a dorsal fin.

"Thank Poseidon, ye still live!" cried Hero Giles, gripping their hands eagerly. "I had fear for ye, oh my friends."

Nelson grinned. "You cut the rescue act pretty fine, but of course we're d.a.m.ned grateful. And now,"--eagerly seizing the Hero's splendidly muscled arm--"in G.o.d's name tell us what's happened. Why we were arrested and--nearly made into allosaurus fodder?"

Hero Giles turned from snapping an order to a subaltern who was peering down a great, shadowy hallway with a distinctly uneasy manner.

"Much," he said. "Scarcely had ye two departed from Heliopolis than the priests, mad with rage over Altara's continued captivity, dared to seize the person of His Splendor and proclaim a regency. Herakles, the arch-priest is--"

From far down the gloomy, vaulted corridor came a faint sound, rather like the distant cheering of a crowd. The hoplites, standing about, turned their helmeted heads and stared uneasily, their brazen armor glowing dully with each movement.

"I'll tell ye more later, but now--"--Hero Giles' voice took on a ringing quality like the clash of steel--"there is work to be done. To rescue ye, oh Hero Nelson, I slew the guards at the lower gate, for this prison lies in the hands of a caitiff rogue, Hero Edmund, one who clings to the priestly party. We had best be off lest we be trapped and slaughtered like rats in a pit."

Very distinctly to the ears of the aviator now came the dull clash of equipment and the tread of feet.

"Forward! We must hasten to reach the podokos waiting below," cried Hero Giles, settling his ponderous helmet more squarely on his leonine head.

At once the escort of fifteen-odd hoplites commenced to move down the corridor to the left, their hands tightly gripping the b.u.t.ts of their retortii pistols. At their head ran Hero Giles, and by his side Alden and Victor Nelson, who gripped his .45 vowing never again to return to that ghastly cell.

A long ringing cry from the rear brought home the dread realization that the enemy had appeared. Looking back, Nelson could see the far end of the great corridor filled with menacing figures. Then his heart leaped like a deer in a thicket, for _from ahead_ sounded the clash of weapons! The rescue party's retreat was cut off!

Hero Giles acted with the speed of a veteran accustomed to emergencies. "Forward!" he roared, making the bare walls reverberate and rumble with his voice. "_Halor van! Ula Storr!_"[1]

[Footnote 1: Make ready for your retortii.]

As by magic, there appeared before the retreating force a double rank of blue-crested hoplites who debouched from a side pa.s.sage into the hall and clawed desperately for fungus bombs and retortii. Evidently they had not expected to come upon the invaders so abruptly.

"_Storr!_" Like a brazen trumpet's call, the voice of Hero Giles rang out the order to fire--which was instantly drowned out in the furious hissing of the retortii of his followers.

Ever watchful, Nelson fired at a gigantic officer who, avoiding the first steam jets, flung back his arms to hurl one of the deadly fungus bombs among the rescuers. Shattering the bronze helmet, the American's bullet struck the Atlantean squarely between the eyes, but nevertheless the stricken officer's grenade rolled forward and burst among the hindermost of Hero Giles' followers. Instantly, the deadly green mold flung itself upon the nearest hoplites and in a moment they crashed to the smooth granite floor, the yellowish growths already sprouting from nose, mouth and ears.

In the corridor reigned chaos, for Hero Giles' followers were now turning the full fury of their retortii upon the rank of men barring further flight. With dreadful ease, the scalding steam struck dead the opposing warriors, stripping the flesh from their bones as easily as a boy peels a banana.

Amid the swirling white clouds, Nelson had ghastly visions of yellow skulls, of steaming accoutrement, of limp heaps of disintegrating bodies; then silence fell, and, before he quite realized it, he, together with Alden and three hoplites who had survived the disastrous fungus grenade, were bounding along after Hero Giles' glittering figure as he led the way down one pa.s.sage after another.

Louder than ever rang the fierce cry from the rear. Behind him Nelson could see dozens upon dozens of yelling pursuers, and knew that if he were to live he must run as never before.

Into a succession of s.p.a.cious rooms dashed the fugitives; on through deserted armories where hundreds of bronze helmets dangled in orderly rows; and across silent barrack halls.

Closer and closer sounded the pursuing feet, spurring the runners to an even more headlong gait.

All at once a door loomed to the right; into this darted Hero Giles and after him pounded the two Americans and three hoplites. In an instant the six men set their shoulder to the ponderous bronze door and swung it to, just as the hiss of a retortii on the other side rose above the mad, blood-hungry clamor of the momentarily baffled rebels.

Gasping and sweat-bathed, the fugitives paused only an instant.

"We've gained a short pa.s.sage," gasped the Atlantean wrenching off his helmet and breast plate. The veins stood out in great blue cords on his forehead, for the weight of the armor could not have been inconsiderable. "Below wait our podokos."

Nelson stripped off his leather coat, following the example of the hoplites, who swiftly divested themselves of such c.u.mbersome equipment as could readily be removed. Then, while the shouts of the thwarted pursuers swelled like a demonic chorus, and while feathers of steam crept under the great door, Hero Giles spun about and, with his short yellow hair gleaming bright, led on down another series of pa.s.sages.

All at once the fugitives, now reduced by exhaustion to five, found themselves on a balcony overlooking the great valley of Atlans. Before them opened an enormous staircase and down this they dashed at top speed, infinitely relieved to be once more in the open air.

Running like hunted stags, the fugitives had descended but a third of the great staircase, when, from behind, came a sudden, menacing cry that warned Nelson that the pursuers had, after going a longer way around, come once more in sight.

"Ah! Poseidon blast the traitorous Edmund and his varlets! See?"

panted Hero Giles pointing to a huge arch from beneath which was issuing a glittering column of shouting, swift running warriors at whose head dashed a splendidly-proportioned figure that must be Hero Edmund.

With the speed of the hunted, Hero Giles bounded forward, taking three and four steps at a stride, his jade green cloak snapping out behind.

Down, ever downwards over the endless flight of stairs the aviators followed him until, spent and panting, the hard pressed five plunged down a final circular staircase and so gained a courtyard where waited a detachment of armored lancers whose yellow plumes and pennons shone bright in the glare of the flame suns. Staring anxiously upwards, the troopers nevertheless stood to attention in an orderly rank beside those curious Atlantean mounts called podokos.

During all his sojourn in Atlans, Nelson had never become used to the hideous and awe-inspiring podokos which closely resembled the allosauri but were only eighteen feet long. Like the other monsters, they had tremendously developed hind legs which promised the speed now so vital for escape and safety. Ready in the tooth-studded jaws of each podoko was fitted a bronze bit together with a bridle and reins; and cinched up on each creature's back was one of those curious Atlantean saddles, which was built up at the cantle to overcome the downward slope of the podokos' spines.

Need for vital haste was but too obvious and, as he drew near, Hero Giles gasped the command to be off.

"Quick," he shouted, his scarred visage flushed and sweat-bathed.

"Saddles! Speed! Speed! Cling fast as your beasts arise!"

All five literally hurled themselves into gorgeously caparisoned saddles. Instantly, the urging squatting podokos leaped to their feet.