Redshift Rendezvous

HOMer Award winner 1990, Nebula Award nominee 1991.

Aboard the hyperspace liner Redshift, the first sign of trouble is the apparent suicide of a passenger. When first officer Jason Kraft discovers that she was murdered, Kraft wants to know why. Before long, a desperate group of people tries to use the hyperspace craft for their evil purposes, and Kraft is the only person in their way.

From the PASSENGER GUIDE. WARNING: Read This Guide Before Boarding the Redshift.

The environment aboard a hyperspace craft is quite safe as long as you are careful. The management reminds you that the speed of light on board this craft is ten meters per second, or about 30 million times slower than what you are used to. This means you will frequently encounter relativistic effects and optical illusions...