cottage units ... the Institute housed its people well. There were four large buildings at the center, and Radek noted gratefully that several windows were still shining in them. Not that he had any compunctions about getting the great Dr. Lang out of bed, but— He ignored the public landing field outside the walls and set his boat down in the paved courtyard. As he climbed out, half a dozen guards came running. They were husky men in blue uniforms, armed with stunners, and the dim light showed faces hinting they wouldn't be sorry to feed him a beam. Radek dropped to the ground, folded his arms, and waited. The breath from his nose was frosty under the moon. "What the hell do you want?" The nearest guard pulled up in front of him and laid a hand on his shock gun. "Who the devil are you? Don't you know this is private property? What's the big idea, anyway?" "Take it easy," advised Radek. "I have to see Dr. Lang at once. Emergency." "You didn't call for an appointment, did you?" "No, I didn't." "All right, then—" "I didn't think he'd care to have me give my reasons over a radio. This is confidential and urgent." The men hesitated, uncertain before such an outrageous violation of all civilized canons. "I dunno, friend ... he's busy ... if you want to see Dr. McCormick—" "Dr. Lang. Ask him if I may. Tell him I have news about his longevity process." "His what?" Radek spelled it out and watched the man go. Another one made some ungracious remark and frisked him with needless ostentation. A third was more urbane: "Sorry to do this, but you understand we've got important work going on. Can't have just anybody busting in." "Sure, that's all right." Radek shivered in the thin chill air and pulled his cloak tighter about him. "Viruses and stuff around. If any of that got loose—You understand." Well, it wasn't a bad cover-up. None of these fellows looked