Galactic ​Patrol

Terror of the Space Raiders!
The space pirates of Boskone raided at will, menacing the whole structure of interstellar civilization. Masterminded by a super-scientist, their conquering fleets outgunned even the mighty space cruisers of the Galactic Patrol.
When Lensman Kim Kinnison of the Patrol discovered he secret of the Boskonian base, it was invulnerable to outside attack. But where a battle-fleet would meet insuperable resistance, a single infiltrator might penetrate the Boskonian defences – if he had the guts to take million-to-one odds. Kinnison had guts enough to take on the odds – even with the future of the civilized Universe riding on his shoulders…
Galactic Patrol is the third novel in the epic seven-volume Lensman series, a saga of galactic adventure in the great tradition of adventurous science fiction. Each Lensman book is a complete, exciting novel in itself – watch out for each one as it appears in Panther Scienc Fiction.