board." And then, hesitantly, "It's all happened so quickly—"

"There's no need to say it." The Investigator smiled. His huge hand swallowed Hendley's shoulder and gave a reassuring squeeze. "Your rehabilitation will be all the satisfaction I need."

The phrases rolled easily from his lips. Too easily, Hendley thought uncomfortably, as if the words composed a slogan learned, memorized, converted into an act of faith by repetition. Even the reassuring hand was a practiced gesture. Category: Friendship. Purpose: To Instill Confidence. Method: Place Hand On Shoulder....

The door to the boarding ramp stood open. A metallic voice spoke over an intercom. "Last call for Flight Three-four-seven. Boarding now. Repeat. Last call for...."

"Good luck!" the Investigator said.

Then Hendley was stumbling down the ramp, turning once to wave awkwardly.

There was no sensation of motion beyond a vibration so faint that it could almost be put down to imagination. Yet the knowledge that the copter was in flight gave Hendley, sitting in the blind-walled passenger cabin, a strange feeling of being helplessly adrift. Deprived of the sight of land below, he had no way of knowing whether the ship rose or fell, moved forward or backward, and no point of reference by which to judge its speed. He might have been in a runaway rocket, plunging out of control through space, like those legendary vehicles of an earlier world a century dead.

After a while he recognized the sensation of being watched. Eyes probed like feelers at the back of his neck. When he glanced around, the nearest passenger, a man seated across the center aisle and one row behind, quickly averted his gaze. Only then did Hendley realize that he was sitting apart from the other passengers, who were tightly grouped to the front and rear, as if they had consciously avoided the seats close to him. A woman several rows ahead masked her interest guiltily, pretending to stare over Hendley's head—fascinated by the empty baggage rack.

Puzzled, Hendley frowned. He felt self-conscious enough in this strange uniform....

Understanding came. Of course! The other passengers wore blue, yellow, in two instances beige. His was the only white coverall. The curiosity, the averted and envious eyes, the careful avoidance of adjoining seats were suddenly explained. Freemen were never seen in the city—as far as Hendley knew they 

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