"Those two above--they're attacking!" shouted Stern. "Quick--after them! You, you, you!"
He told off half a dozen men with rifles and revolvers.
"Quick, before they can hide! Look out for their darts! Kill! Kill!"
The detachment started up the path at a run, eager for the hunt.
Stern set the flaring torch to the first fireball. It burst into bright flame.
"Shoot, Sivad! Shoot!" he commanded. "Shoot high, shoot far. Plant your arrow there in the dry undergrowth where the wind whips the jungle! Shoot and fail not!"
The stout bowman drew his arrow to the head, back, back till the flame licked his left hand.
"Zing-g-g-g-g!"
The humming bowspring sang in harmony with the zooning arrow. A swift blue streak split the air, high above the river. In a quick trajectory it leaped.
It vanished in the wind-swept forest. Almost before it had disappeared, Sivad had snatched another flaming arrow and had planted it farther down stream.
One by one, till all were gone, the marksman sowed the seed of conflagration. And all the while, from the rifles along the parapet, death went spitting at the forefront of invasion.
Another boulder fell from aloft, this time working havoc; for as one of the riflemen sprang to dodge, it struck a shoulder of limestone, bounded, and took him fair on the back.
His cry was smashed clean out; he and the stone, together, plumbed the depths.
But, as though to echo it, shots began to clatter up above. Then all at once they ceased; and a cheer floated away across the canyon.
"They're done, those two up there, damn them!" shouted Stern. "And look, men, look! The fire takes! The woods begin to burn!"
True! Already in three places, coils of greasy smoke were beginning to writhe upward, as the resinous, dry undergrowth blossomed into red bouquets of flame.
Now another fire burst out; then the two remaining ones. From six centers the conflagration was already swiftly spreading.
Smoke-clouds began to drift downwind; and from the forest depths arose not only harsh cries from the panic-stricken Horde, but also beast and bird-calls as the startled fauna sought to flee this new, red terror.
Shouts and cheers of triumph burst from the little band of defenders on the terrace as the sweeping wind, flailing the flame through the sun-dried underbrush, whirled it crackling aloft in a quick-leaping storm of fire.
But Stern was silent as he watched the fierce and sudden onset of the conflagration. Between narrowed lids, as though calculating a grave problem, he observed the crazed birds taking sudden flight, launching into air and whirling drunkenly hither and yon with harsh cries for their last brief bit of life.