title: The Sky'sThe Limit: A Century of Chicago Skyscrapers
author: Pauline A. Saliga
description: <div><b>Pauline A. Saliga</b>, a coauthor of <i>Chicago Architects Design</i> (Rizzoli, 1982), is Executive Director of the Society of Architectural Historians in Chicago.<br><br><b>John Zukowsky</b> is Curator of Architecture at the Art Institute of Chicago. He is the author of numerous books on Chicago architecture.<br><br><b>Jane H. Clarke</b> is the Associate Director of Museum Education at the Art Institute and has written on Chicago buildings for some outstanding journals in the architectural field.<br></div>
zlib_text: 
  
  
  
  
  
  ## The Shield of Time
  
  
    
  
  
  ###
  
  
  _( Patrol of Time - 10 )_
  
  
  
  
  
  ### Poul Anderson
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  ## The Shield of Time
  
  
  ## Poul Anderson
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  To MARV and JEAN LARSON
  
  
  hoping someday we’ll be neighbors again.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  ### I
  
  
  
  
  
  
  
  
  For a moment, as he looked across megalopolis, something like terror caught
  him. What do I do now?
  
  
  Reddened by haze, the sun was dropping behind a Center, which bulked black
  against a sky where aircraft moved like glittering midges. The whole horizon
  was full of such unitized sub-cities and company towers. But closer at hand
  Koskinen saw how the skyline was an illusion. The great buildings stood well
  apart, separated by a huddle of warehouses, factories, low-class tenements.
  Tubeways knit them together, curves which soared and gleamed in the last
  sunshine; but underneath lay a prosaic web of streets, belts and monorails. In
  the early darkness below the walls, lights had already switched on, twinkling
  from groun