Space Duel to the Death. Somewhere among the galaxies was the stronghold of Boskone - a network of brilliant interplanetary criminals whose mania for conquest threatened the future o all civilization. But Where? Boskanian bases dotted the universe - shielded by gigantic thought-screens that defied penetration. It was up to Lensman Kim Kinnison, using his fantastic mental powers, to infiltrate the Boskonian strongholds and learn the location of the enemy's Grand Base - and smash it forever! --- from book's back cover
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