Then the chattering stopped abruptly, as though at the command of some unseen leader. The next moment one of the creatures stepped boldly out into full view in the clearing. Powell's scalp crinkled in disgust as he realized the nature of the thing confronting him. It was literally a rat-man. Its upright posture upon two powerful, bowed hind legs was that of a man, but its human-like points were overshadowed by a dozen indelible marks of the beast. A coat of short, dirty gray fur covered the creature from head to foot. Its hands and feet were claw-like travesties of human members. Its pointed, chinless face with its projecting teeth and glittering little beady eyes was that of a giant rodent. The beast in the clearing was apparently a leader of some sort, for around his throat was a wide collar of gray metal, with its flat surface marked in rudely scratched hieroglyphics. Powell's heart leaped as he noted the collar. In this creature before him he had his second clue to the whereabouts of Joan Marlowe. Not only was the collar practically identical to the one worn by the skeleton that had been materialized in the egg back in the laboratory, but the skeleton itself was obviously that of one of the rat-men. Could it be this grotesque horde of human-like rodents that was holding Joan captive in the Cave of Blue Flames? * * * * * Powell tried desperately to think of some way of communicating with the gray-collared leader. Then the beast shrilled a command that brought hundreds of the beasts swarming into the clearing from every side, and in the face of the menace of their countless glittering eyes and bared fangs Powell abandoned all thought of attempting to parley with the beasts. There was another shrill command from the leader, and the horde closed in. Both of Powell's guns flamed in a crashing leaden hail that swept the close-packed ranks of furry bodies with murderous effect. But he was doomed by sheer weight of numbers. The rat-men directly in front of the blazing pistols wavered momentarily, but the press of the hundreds behind them swept them inexorably forward. Powell emptied both guns in a last vain effort. Then he was swept from his feet, and the horde surged over him. Blinded and smothered by the dozens of furry bodies that swarmed over him, he had hardly a chance to even try to fight back. His cartridge-belt and guns, his Silver Belts and his wrist-watch were stripped from him by the dozens of claw-like hands that searched his body. Other claw-hands jerked his arms behind his back and lashed them firmly together with rope. A blanketing sheet of some heavy fabric was crammed over his head and tied in place so tightly that he was completely blindfolded and half-suffocated. A noose was knotted around his neck. A suggestive jerk of this noose brought Powell lurching to his feet; there was another commanding jerk, and he obediently started walking. * * * * *