But now his mind bore down on it. And he had the answer almost at once. A small boy climbing the wall of a pretty garden. And his casual christening by a pleasant stranger who met him thus for the first time. Among more vivid and significant details, the memory of the name itself had been mislaid. But Ed Dukas knew that in his boyhood one person had always called him Nipper: Uncle Mitch Prell, and nobody else. Now it seemed like a secret sign. Ed gulped, his reaction suspended somewhere between shocked pleasure and a frosty sense of eeriness. To have a friend, whom he had loved as a child, vanish into space and into apparent nonexistence after becoming a fugitive, and then to have what _seemed_ to be this friend try to communicate again after ten years, and in this weird manner--well--how would you say it? Ghosts, of course, were pure superstition. But in this age one could still react as if to the supernatural--with tingling hide and quickened heartbeats. In fact, with the vast growth of technology, more than ever was such a feeling possible. "Uncle Mitch!" Ed Dukas called quietly. Again there was no reply. The name on the paper still could be somebody else's trick. Granger's, maybe. There were ways for him to have learned a nickname. Many people might admire Granger as much as others despised him. And it was hard to say what he might do, or when. Or how, for that matter. He was clever. And wrong. There was still another thing to remember. Ed did not altogether love the memory of his uncle, Dr. Mitchell Prell. For this famous scientist was marked with the stigma of responsibility for a terrific mishap. No, Prell did not bear the burden alone. There were other scientists, it was said, who had poked too roughly, and with too sharp a stick, into Nature's deepest lair. Nature had snarled back. Ed had grown up with the public hate that had resulted. He had fought against it, yet he had felt it, until sometimes he did not know where he himself stood. Now he waited for more writing to be traced on the paper under the microscope. A minute passed, but there was nothing more. He did notice, however, that the letters of that one word matched roughly the austere handwriting of his uncle. Once he glanced toward the window with some nervousness. Outside, the night was glorious. Never again would nights be hideous as they once had been. He saw lush gardens under silver light. If any devilish thing not known until recent months slithered through the shadows, it kept hidden. Ed saw other neighboring houses. New trees had grown to fair size in ten years. Older and larger trees remained lopsided and gnarled. But their burn scars had healed. Otherwise there was nothing left to monument the past--except, perhaps, the sullen mutter of voices in nearby streets.