They shot into open space and jerked violently at the half-globular nest, which was wrenched from its place by the combined impetus of the six heavy weights. Burl had flung himself upon his face to watch what he was sure would be the death of the spider as it fell forty feet and more, imprisoned in its heavily weighted home. His eyes sparkled with triumph as he saw the ghastly, trophy-laden house swing out from the cliff. Then he gasped in terror. One of the cables had not been discovered. That single cable held the spider's castle from a fall, though the nest had been torn from its anchorage, and now dangled heavily on its side in mid air. A convulsive struggle seemed to be going on within. Then one of the archlike doors opened, and the spider emerged, evidently in terror, and confused by the light of day, but still venomous and still deadly. It found but a single of its anchoring cables intact, that leading to the cliff top hard by Burl's head. The spider sprang for this single cable, and its legs grasped the slender thread eagerly while it began to climb rapidly up toward the cliff top. As with all the creatures of Burl's time, its first thought was of battle, not flight, and it came up the thin cord with its poison fangs unsheathed and its mandibles clashing in rage. The shaggy hair upon its body seemed to bristle with insane ferocity, and the horrible, thin legs moved with desperate haste as it hastened to meet and wreak vengeance upon the cause of its sudden alarm. Burl's followers fled, uttering shrieks of fear, and Burl started to his feet, in the grip of a terrible panic. Then his hand struck one of the heavy boulders. Exerting every ounce of his strength, he pushed it over the cliff just where the cable appeared above the edge. For the fraction of a second there was silence, and then the indescribable sound of an impact against a soft body. There was a gasping cry, and a moment later the curiously muffled clatter of the boulder striking the earth below. Somehow, the sound suggested that the boulder had struck first upon some soft object. A faint cry came from the bottom of the hill. The last of Burl's men was leaping to a hiding-place among the mushrooms of the forest, and had seen the sheen of shining armor just before him. He cried out and waited for death, but only a delicately formed wasp rose heavily into the air, bearing beneath it the more and more