What is POSAT? By PHYLLIS STERLING SMITH Illustrated by ED ALEXANDER [Transcriber's Note: This etext was produced from Galaxy Science Fiction September 1951. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] Of course coming events cast their shadows before, but this shadow was 400 years long! The following advertisement appeared in the July 1953 issue of several magazines: MASTERY OF ALL KNOWLEDGE CAN BE YOURS! What is the secret source of those profound principles that can solve the problems of life? Send for our FREE booklet of explanation. Do not be a leaf in the wind! YOU can alter the course of your life! Tap the treasury of Wisdom through the ages! The Perpetual Order of Seekers After Truth POSAT an ancient secret society Most readers passed it by with scarcely a glance. It was, after all, similar to the many that had appeared through the years under the name of that same society. Other readers, as their eyes slid over the familiar format of the ad, speculated idly about the persistent and mildly mysterious organization behind it. A few even resolved to clip the attached coupon and send for the booklet--sometime--when a pen or pencil was nearer at hand. Bill Evans, an unemployed pharmacist, saw the ad in a copy of _Your Life and Psychology_ that had been abandoned on his seat in the bus. He filled out the blanks on the coupon with a scrap of stubby pencil. "You can alter the course of your life!" he read again. He particularly liked that thought, even though he had long since ceased to believe it. He actually took the trouble to mail the coupon. After all, he had, literally, nothing to lose, and nothing else to occupy his time. Miss Elizabeth Arnable was one of the few to whom the advertisement was unfamiliar. As a matter of fact, she very seldom read a magazine. The radio in her room took the place of reading matter, and she always liked to think that it amused her cats as well as herself. Reading would be so selfish under the circumstances, wouldn't it? Not but what the cats weren't almost smart enough to read, she always said. It just so happened, however, that she had bought a copy of the _Antivivisectionist Gazette_ the day before. She pounced upon the POSAT ad as a trout might snap at a particularly attractive fly. Having filled out the coupon with violet ink, she invented an errand that would take her past the neighborhood post office so that she could post it as soon as possible.