title: Threshold (Morris novel)
text: # Threshold (Morris novel)
  
  Threshold is a 1990 science fiction novel by American writers Chris Morris and Janet Morris. It is the first book of its namesake trilogy.
  
  ## Plot summary
  
  In a futuristic world, Earth is now a preserve. A captain is transported 500 years into the future and onto Threshold, which is a space habitat. Here he meets with the daughter of a Muslim leader, one of many who are being kept from their travel to Mecca.
  
  