At an intersection ahead, a sidewalk juggler had collected a cluster of spectators. I put on a burst, slid through the fringe of the crowd and around the corner. I stopped, counted to ten slowly, then plunged back the way I had come, just in time to collide with my pursuer, coming up fast.

We both yelped, staggered, groped for support, disengaged, muttering excuses, and separated hurriedly. I crossed the street, did an elementary double-back through an arcade, and watched him hurry past. Then I hailed a noisily cruising helicab that had probably been condemned and sold by the City of New York Transit Authority a dozen years earlier.

I caught a glimpse of him standing on the corner looking around worriedly as we lifted off over the rooftops. I didn't waste any sympathy on him; he had been carrying a heavy solid-slug pistol under one arm, a light energy gun under the other, and at least three hypo-spray syringes under his left lapel-probably containing enough assorted poisons to suit any personality he might take a dislike to.

I took out his wallet and riffled through it; there were a couple of hundred Algerian francs, a new two cee American bill, a folded paper containing a white powder, a soiled card imprinted with the name of a firm specializing in unusual photographs, one of the photographs, a week-old horoscope, and a scrap of paper with my name scrawled on it. I didn't know whether it was Julius' handwriting or not, but there was enough of a UN watermark showing to make the question academic.

The cab dropped me in the wide plaza in front of the down-at-heels aluminum and glass Army-Navy-Air Club. I gave the driver the little man's two hundred francs. He accepted it without comment; maybe New York had thrown him in on the deal with the heli.

I had an hour or two to kill. It would be necessary to stay away from my room long enough to give Julius-or anyone else with an interest in my movements-adequate time to look over the evidence planted there to satisfy himself about my mission in Tamboula.