One was that Astra already harbored an Earth colony--descended from refugees from the world of the previous century. Two was that these men and women were facing the greatest danger of their existence from a new outburst of the inhuman fiends who had once tyrannized Astra. Three was that the natives who were buying Kurbi's science know-how were those very fiends--and their intentions were implacably deadly for all humans, whether Earth born or STAR BORN. _It's an Andre Norton space adventure--and therefore the tops in its field!_ * * * * * Quotes from the reviews: "All science-fiction fans will thrill to these new adventures created by Andre Norton.... All who enjoy a good adventure about the unknown parts of our galaxy will find this an enchanting story." --_Jackson _(_Tenn._) _Sun_ "Superb science-fiction." --_Montgomery Advertiser_ "Andre Norton adds another star to her literary laurels." --_Cleveland Press_ "A good, clearly thought-out story." --_New York Times_ "Exciting and adventure-laden." --_Library Journal_ "Suspense and excitement.... A storyteller of the first class, this is one of her best." --_Fantasy & Science Fiction_ * * * * * NOW AVAILABLE AGAIN! PERRY RHODAN 95¢ each #1 Enterprise Stardust Scheer & Ernsting #2 The Radiant Dome Scheer & Ernsting #3 Galactic Alarm Mahr & Shols #4 Invasion from Space Ernsting & Mahr #5 The Vega Sector Scheer & Mahr #6 Secret of the Time Vault Darlton #7 Fortress of the Six Moons Scheer #8 The Galactic Riddle Darlton #9 Quest through Space and Time Darlton #10 The Ghosts of Gol Mahr #11 Planet of the Dying Sun Mahr #12 Rebels of Tuglan Darlton #13 The Immortal Unknown Darlton #14 Venus in Danger Mahr #15 Escape To Venus Mahr #16 Secret Barrier X Shols #17 The Venus Trap Mahr #18 Menace of the Mutant Master Darlton #19 Mutants vs. Mutants Darlton #20 The Thrall of Hypno Darlton _Available wherever paperbacks an sold or use this coupon._ * * * * * ace books, (Dept. MM) Box 576, Times Square Station New York, N.Y. 10036 Please send me titles checked above. I enclose $.................. Add 25¢ handling fee per copy. Name.................................................... Address................................................. City...................... State............ Zip........ * * * * * ANDRE NORTON