There was something of unwonted solemnity in the voice of the master pilot—something of quiet power and the dignity that became a messenger of the gods—as he gave his orders and faced the throng.

And there was the patience of a god who is sickened of slaughter as he faced the discordant din and the threatening forward surge of the demon throng below. The girl had spoken, and the air was black with their threshing wings, while still Chet waited with outstretched hand.

To the creatures below—the things half-men and half-beasts—the shining tube in that extended hand meant nothing of threat. And even to the Irish pilot, who stood silently watching, the gesture seemed futile.

"You've overplayed your hand, lad," he said in a tone of despair. "'Tis no little gun like that will stop them now!"

He was watching that hand and the shining tube; watching in amazement as he saw it swing slowly up toward the advancing horde risen level with them in the air—up above their massed blackness of wings—on and up, until the tube was pointing toward the base of a carven pendant, whose blending colors were fairy lights at play.

And still the weapon waited until the snarling faces of the enemy were close. Then the pistol cracked once, and the roar of its exploding shell came thundering after.

For an instant all motion ceased; the very wings of the flying beasts seemed frozen rigid in mid-flight. Then the whole of the vast room was in motion.


A rush of escaping air whirled upward the black-winged monsters in an inverted maelstrom of shrieking winds. And, falling to meet them, came an enormous pendant whose rioting colors seemed glorying in their own death. And with that came the swift disintegration of the vaulted arches where the one central supporting point of their intricate maze had been shattered; till, with a crashing avalanche of sound that obliterated the thundering echoes of the detonite charge, the entire ceiling, that seemed now like the roof of a mighty world, roared down to destruction.

The pyramidal rostrum was at one side. A cascade of shattered rock fell like a curtain before it—a kindly curtain that hid from human sight the hideous slaughter of a demoniac mob. It was still falling; the imprisoned air was gathering added force to rush upward, screaming as if the very winds were insane with joy at their release, when the great arms of Frithjof Haldgren closed about the others of the group and half carried them, half hurled them, down the slope.