Jaeger ran a finger over his lips. "He'd be easy to locate," he mused. "And he'd have a hard time evading an enemy." "Precisely." Kweiros nodded. "And he'd never be able to approach his prey. In short, he'd fail to survive. Complete telepathic blankness would have a high survival value. But an ability to detect mental radiation would still be a big help." He waved a hand. "So, a race like this one could evolve. And the author of this tape extrapolated from there. A normal telepathic reception will be accompanied, by a slight feedback. A completely black body, however, will neither radiate nor feed back. It merely absorbs energy and, unless it's super-imposed on a reflective background, it leaves no trace. Since nothing in nature other than a telepathic mind can reflect telepathy, no background would survive for long." He frowned a little. "Of course, no mind we are familiar with could act as a telepathically black body, but this author hypothesized a race that could do just that--plus. There's a further hypothesis of an ability to detect and localize radiations as such, without bothering to resolve them." "Sounds like just what we have here," Jaeger admitted. "It does, doesn't it?" Kweiros nodded. "And there's a further extrapolation. Some of the members or the elder races have speculated on a sort of second-order telepathy, undetectable to the normal telepath, but capable of noting normal radiation. And some of the speculations seem to make sense--though they're a little confusing. If you don't have a specific sense, it's difficult to visualize it, or even to speculate on its presence." He drew a deep breath. "That leads us into a real problem. Our people roamed around this planet for several cycles this time. And there may have been others before us, who didn't record their visits, other than in the minds and legends of the natives. And there may be other legends from that other, older culture." He shrugged. "We picked up what we could on the culture, but we didn't get the full story on them. And we've probably left a thousand legends behind us, including that beautiful mess at your station." He grinned. "Right now, their folklore is loaded with sorcerers, warlocks, wizards, and what not. After all, whatever their past is, they're primitive now. So those stories are going to grow and continue. Eventually, long before they really develop a stabilized ethic, someone's going to collate that whole mess. And do you know what he'll come up with?" "Us?" "Us, yes. Us, in a distorted form." Kweiros nodded emphatically. "They will come to a full realization that there are advanced entities running around the cosmos, entities that have all kinds of mysterious powers. And they'll invent still more powers and characteristics--mostly bad." He spread his hands, then laid them on the desk in front of him. * * *