sight. Or would he? "Get on that radio again," he told the radioman, "—and tell them I want that man alive. Get that—alive!" "Right." The officer switched on his microphone and began to talk. Karnes pinched the bridge of his nose and closed his eyes in an attempt to concentrate. With Lansberg shot up, that put the Brittain case in his hands. Theoretically, he should be pumping the prisoners down below to find out how much higher the spy ring went. But his real interest lay in Brittain, himself. There was no doubt that he had received another message from the impressor before he had thrown it down. Evidently, when the thing broke, the unknown energies which powered it had short-circuited, paralyzing everyone in the room with their mind-impressing effect. Then why hadn't it affected Brittain? Perhaps his recent exposure to a normal dosage had immunized him. There was no way of knowing—there never would be. But what was the message Brittain had received from the impressor that would make him react so violently? It couldn't be the same one that he, Karnes, had received. Continued on Stratum Two! Sure; that was it! Like the pages in a book. He, himself, had been hit with page one; Brittain had page two. Page three? Lost forever. Why hadn't they found that 'copter by now? It ought to be easy enough to spot. He walked over to the edge of the building and looked down. The police were herding the prisoners into the ground cars. Presently, they were gone. One of the police officers touched his shoulder. "Ready to go, Mr. Karnes?" Karnes nodded and climbed into the 'copter. The machine lifted and headed toward the Central Police Station. He was still trying to think when the phone rang. The policeman picked it up. "3217. Brown speaking. Oh? Yeah, just a second. It's for you, Mr. Karnes." Karnes took the instrument. "Karnes speaking."