Now a Gray Lensman, free to act anywhere in the galaxy, Kimball Kinnison goes undercover through mining camps, drug rings and enemy fleets to track down the leaders of the pirate empire Boskone. Space battles of planetary scale alternate with disguises, bar fights and romance with nurse Clarrissa MacDougall.
Serialised in Astounding in 1939–40, the novel that made the Lensman series a byword for space opera. Download the free EPUB.