The Colors of Space

by Marion Zimmer Bradley

"The Colors of Space" by Marion Zimmer Bradley is a science fiction novel published in 1963. When humans discover that alien Lhari maintain a monopoly on faster-than-light travel through deception, young Bart Steele goes undercover aboard a Lhari ship as a spy. Disguised through surgery, he must choose between completing his mission to sabotage the vessel or saving the crew he's grown to know—a decision that could reshape humanity's future among the stars.