He turned to gaze ahead, then pointed. "The Martian Master's cone," he hissed. The three saw that at the end of the broad metal street down which their vehicle was racing there loomed another titanic cone-structure, fully as large as the mighty one in which they first found themselves. As the centipede-machine swept up to its great door-opening and halted, they descended to the metal paving and then followed their reptilian guide through the opening. * * * * * They found themselves in a great hall in which scores of the Martians were coming and going. At the hall's end stood a row of what seemed guards, Martians grasping shining tubes such as they had already glimpsed. These gave way to allow their passage when their conductor uttered a hissing order, and then they were moving down a shorter hall at whose end also were guards. As these sprang aside before them, a great door of massive metal they guarded moved softly upward, disclosing a mighty circular hall or room inside. Their crocodilian guide turned to them. "The hall of the Martian Master," he hissed. They passed inside with him. The great hall seemed to extend upward to the giant cone's tip, thin light coming down from an opening there. Upon the dull metal of its looming walls were running friezes of lighter metal, grotesque representations of reptilian shapes that they could but vaguely glimpse. Around the walls stood rank after rank of guards. At the hall's center was a low dias, and in a semicircle around and behind it stood a half-hundred great crocodilian shapes. Randall guessed even at the moment that they were the council of which their conductor had named himself a member. But like Milton and Lanier, he had eyes in that first moment only for the dais itself. For on it was--the Martian Master. Randall heard Milton and Lanier choke with the horror that shook his own heart and brain as he gazed. It was not simply another great crocodilian shape that sat upon that dais. It was a monstrous thing formed by the joining of three of the great reptilian bodies! Three distinct crocodile-like bodies sitting close together upon a metal seat, that had but a single great head. A great, grotesque crocodilian head that bulged backward and to either side, and that rested on the three thick short necks that rose from the triple body! And that head, that triple-bodied thing, was living, its unwinking eyes gazing at the three men! * * * * *