They reached the rocky projection, and began backing slowly and carefully out toward its end. The guards, galvanized into action by their captives’ retreat, suddenly came surging forward in a furious charge.
Powell emptied the two automatics in a crashing volley that nearly wiped out the charging guards. The few survivors turned and fled in panic back to the main horde. Powell reloaded his clips with feverish haste.
The thousands of rat-men in the main horde were now milling in what was apparently a last moment of hesitation before surging forward in an irresistible stampede toward the beleaguered two out on the rocky strip.
Several bolder individuals at the edge of the horde edged a step forward. Their example was followed by a hundred others. Another hesitant step or two—and then the whole horde was in motion.
Powell swept the front rank with a rain of lead from one of the automatics, holding the other as a reserve. The heavy bullets plowed murder into the close-packed furry bodies. The charge wavered momentarily. Then Powell felt Joan tugging frantically at his arm.
“Larry, the rocks under us are crumbling!” she cried. “We’ll be hurled down into the pit!”
Even as she spoke, Powell felt the narrow strip of rock under them quiver and settle. He looked quickly down. All along its length, the narrow rocky projection, weakened by their weight, was breaking swiftly away from the pit’s edge. And on the floor of the pit below them the two waiting Devil Crystals moved with musical, tinkling sounds as they waited restlessly for their prey to fall among them.
The horde of rat-men rallied and swept on forward in a wave that nothing could have stopped this time—but their charge was too late. The entire rocky projection collapsed with a final sickening lurch, and slid to the pit’s floor, carrying Joan and Powell with it in a miniature avalanche of rocky rubble.
Even in the chaos of their wild descent, Powell retained his grip upon the loaded automatic in his hand. They struck the bottom and staggered half-dazed to their feet, to confront the two crystalline monsters rocking on their rounded bases scarcely ten feet away.