Galactic Patrol (The Lensman Series, #3)

The Galactic Patrol has been given the ultimate weapon in its war against the evil pirate Boskone: The Lens. But even though the Patrol's Lensmen are the most feared peacekeepers in the galaxy, they aren't quite sure how to use their unique gift. Things are about to change, however. Kimball Kinnison has just graduated from the academy, and now that's he's earned his Lens, he's determined to figure out how it works. Kinnison begins his…