Until that moment when Baxter turned, I'd been certain that the Amnesty was in Snow's possession. And now here it was, gleaming in bright red and bronze against the front of his crisp black linen blouse. The sight of it twanged a chord in my mind, and I crouched there on that narrow ledge, trying to grasp the fleeting thread of thought. The Amnesty was exactly the same color as that parabolite wall down in the tunnels, the barrier to the lair of the Ancients. Was it a coincidence that this token of power was designed to match in shade and intensity of color that unearthly mineral of another dimension? A queer notion began to take root in my mind. Baxter had given me the Amnesty before I set off to find the missing boys. Or had he? Was that the Amnesty I'd carried, or a copy, a perfect duplicate constructed not of metal, but the impervious mineral. My brain was spinning as little unimportant facts suddenly burgeoned and grew, and took on terrible significance. According to our science, parabolite was invulnerable to all tools, and could not be worked or shaped. Yet the Martian had said to me that Baxter possessed the means to disengage the fragile bond that linked the two dimensions by--The truth came home to me with an icy shock. By detonating a portion of their contact-material! And the Amnesty, my Amnesty, was that material. I looked past Baxter to the black blouse, its lining sparkling beneath the incandescent lamplight with thousands of tiny metal filaments, and then I knew at last Baxter's monstrous plan. Cold fury welled up inside me. I could easily, at that moment, have leveled my collapser at him and flashed him out of existence with no more feeling than that engendered by crushing a gnat between finger and thumb. My hand was sliding back toward that cold metal handle jutting from my holster, when there came an interruption. The door before Baxter's desk opened, and Charlie and Foster came in. Clatclit and I ducked back from the pane, and listened, holding our breaths. "About time!" Baxter growled. "Since you two are alone, I assume this was another wild goose chase!" His fist slammed down atop the crumpled shirt, and I caught his meaning. Apparently, when they'd discovered my cell empty, they'd tracked my trail by whatever electronic device followed up the location of that rigged garment, and had been led miles astray in the Martian desert, finding only the empty blouse at the end of their quest. "Yes and no, sir," Charlie said. "It's--it's the weirdest thing." "Well? What?" Baxter snapped angrily. Charlie, while replying, was unhitching a sort of tanklike apparatus from his back, from which a flexible tube ran into the end of the pistol at his belt. With the surprise of sudden memory, I recognized one of the weapons of the earlier settlers at Marsport: a sugarfoot-repelling water pistol, with three-gallon ammunition tanks. "We got out the pack, sir, when we returned."