Pandek half-rose from the throne. "You'll die a little more horribly than I'd planned for that remark." "Perhaps I will but the fact remains that you're mad to think you can stand against Terra. Your scientific know-how is admittedly great, but it is not geared for war." "You think not?" "I'm certain of it. I'm also sure of another thing." "What else are you sure of?" "That you have no scientists." "Then how--?" "You had them--ages ago--and they built well--so well that their work has survived to this day. What you have here was built by geniuses for fools to operate. I'm certain all you do is press switches and reap the benefits of work done by long-dead brains in another age." The darkening of Pandek's face told Rex his words had cut deep. In a way, he felt sorry for the Martian. A hate-filled, envy-charged man seeking to vent his rage in mad ways. If carried to their ultimate, his acts could only lead to the destruction of his people at the hands of the Terrans. But this made the situation no less perilous for Rex and Jean and other Terrans on Mars. "You hold a Terran citizen," he said. "The daughter of Professor Spencer. Is she still alive?" Pandek was again enjoying himself. "Oh, very much so." His smile held some hidden meaning as he said, "A trifle embarrassed perhaps--at the moment--but alive and healthy." "I demand you return her to her own people." "You demand? I admire your courage--" "What do you plan to do with her?" Pandek's Martian eyes grew speculative. "She fits into my plans as does the young woman at your side. A new day will dawn upon Mars soon, a reversion to the old days when Mars was a virile, fighting planet. Then, there was less science and more emotion. The masses were whipped to a fighting frenzy by supplications to the old gods." Pandek grinned wickedly. "Human sacrifices were a part of those supplications. Nothing stirs the people like the public sacrifice of a beautiful female with all its pomp and splendor. It stirs them deeply." "The thought of it stirs _you_ deeply, you mean. You're mad. You're a dangerous maniac. I can only hope your own people put you down in time." With a howl of rage, Pandek leaped from his throne. He drew a short ornamental sword from his belt and swung it viciously against the side of Rex's head. Rex went down like an ox felled for slaughter. Jean screamed.... * * * * * The rough-skinned Martian who subdued Tommy Wilks, pressed him against the wall of the tunnel and used Tommy's own flashlight for purposes of inspection. He growled a few unintelligible words and seemed to be debating a problem. Tommy watched him silently, warily, without fear. He had ceased struggling because it was useless but his mind was alert.