GALACTIC PATROL

Panther SF paperback, 1972. Cover painting by Chris Foss.

"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 the secret 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 on million-to-one 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."