Suddenly the spell of mutual amazement was broken, for a tall warrior in a breast plate that glittered with diamonds and seemed altogether more ornate than the rest, clapped a short brass horn to his lips and blew a single piercing note. At once there appeared on the tunnel's floor, not a hundred yards from the startled aviator, a rank of perhaps twenty soldiers, accoutred exactly like those he beheld by the light boxes. They came scrambling over the boulders, their shadows grotesquely preceding them. In their hands were long shafted spears, and on their left arms rectangular shields, charged with a lively dolphin in the act of swimming. Some of them, however, held short hoses in their hands, hoses that sprouted from tight brass coils strapped to their broad shoulders.


gain the commanding figure aloft raised the horn. From the tail of his eye Nelson caught the gleam of metal in the orange glare. While a blast, harsh as the scream of a fire siren, echoed and re-echoed eerily through the passage, there appeared a fresh detachment. Nelson shrank back in horror, for these bronze-armored warriors led, at the end of a powerful chain, two more of those huge, ferocious allosaurs, exactly like the one he had slain but a short while back.

Like well regulated automatons the hoplite rank opened to permit the passage of those repulsive, eager monsters, then closed up again and halted, spears levelled before them in the precise manner of an ancient Grecian phalanx, while the men with those curious hose-like contrivances ran out to guard the flanks.

"I'm done for now," thought Nelson as he threw off the Winchester's safety catch. "I suppose they'll turn those nightmares loose on me."

He was right. For all the world as though they led war dogs, the keepers in brazen armor advanced, the dull metallic clank of their accoutrement clearly discernible above the sibilant hiss of their hideous charges, which hopped along grotesquely like kangaroos, using their long and powerful tails as a counterpoise.

Then the officer watching from the left hand swallow's nest shouted a hoarse, unintelligible command, whereupon one of the keepers raised his right hand in a sharp gesture that instantly flattened the incredible monster to earth, exactly like an obedient bird dog.

As in a fantastic dream Nelson watched one of the armored guardians unsnap the hook of the powerful chain by which his allosaurus was secured. Then, whistling sharply, he clapped his hands and pointed straight at the motionless aviator. The creature's green white eyes flickered back and forth, and a chill, colder than the outer Arctic, invaded Nelson's breast as those unearthly eyes came to rest upon him.