Marion Zimmer Bradley

The Colors of Space (SF Classic) Marion Zimmer Bradley

Bart Steele, the recent graduate of the Space Academy on Earth, learns that his father has been murdered but has sent him a message: Bart, I send money and instructions by my friend. Do as he says. Don't go home, Dad. In a far future space travel is common, but the secret of traveling faster than the speed of light is jealously guarded by a non-human race, the Lhari. Lhari are the species that is color-blind in the sense that everything they see is monochromatic. The pace is relentless and Bart must extort the secret from the Lhari by going undercover as one of them.