The Ultimate Weapon

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The Black Star Passes

by John Wood Campbell

A sky pirate armed with superior weapons of his own invention....First contact with an alien race dangerous enough to threaten the safety of two planets....The arrival of an unseen dark sun whose attendant marauders...

Islands of Space

by John Wood Campbell

"Their space-drive engine shattered the intergalactic barriers"

Invaders from the Infinite

by John Wood Campbell

The alien spaceship was unthinkably huge, enormously powerful, apparently irresistible. It came from the void and settled on Earth, striking awe into the hearts of all who saw it. Its burden, however, was not...

The Last Evolution

by John Wood Campbell

I am the last of my type existing today in all the Solar System. I, too, am the last existing who, in memory, sees the struggle for this System, and in memory I am still close to the Center of Rulers, for mine...

The Sky Is Falling

by Lester Del Rey

''Dave stared around the office. He went to the window and stared upwards at the crazy patchwork of the sky. For all he knew, in such a sky there might be cracks. In fact, as he looked, he could make out a rift,...

Victory

by Lester Del Rey

It seemed Earth was a rich and undefended planet in a warring, hating galaxy. Things can be deceptive though; children playing can be quite rough--but that ain't war, friend!

The Door Through Space

by Marion Zimmer Bradley

... across half a Galaxy, the Terran Empire maintains its sovereignty with the consent of the governed. It is a peaceful reign, held by compact and not by conquest. Again and again, when rebellion threatens...

Badge of Infamy

by Lester Del Rey

As a doctor, Daniel Feldman once made the mistake of saving a friend's life in violation of Medical Lobby rules. Now he's a pariah, shunned by all, and forbidden to touch another patient. But rules are looser...

Police Your Planet

by Lester Del Rey

Bruce Gordon was an ex-fighter, ex-gambler, ex-cop, ex-reporter, and now he was an ex-patriot of Earth. Security shipped him to Mars with a knife, 100 credits, and a yellow card that meant no return.

The Colors of Space

by Marion Zimmer Bradley

It was a week before the Lhari ship went into warp-drive, and all that time young Bart Steele had stayed in his cabin. He was so bored with his own company that the Mentorian medic was a welcome sight when he...

The Dark World

by Henry Kuttner

World War II veteran Edward Bond's recuperation from a disastrous fighter plane crash takes a distinct turn for the weird when he encounters a giant wolf, a red witch, and the undeniable power of the need-fire,...

The Time Axis

by Henry Kuttner

Called to the end of time by a being known as The Face of Ea, four adventurers face a power that not even the science of that era could meet -- the nekron, negative matter, negative force, ultimate desctruction...

Masters of Space

by Edward Elmer "Doc" Smith & Edward Everett Evans

The Masters had ruled all space with an unconquerable iron fist. But the Masters were gone. And this new, young race who came now to take their place--could they hope to defeat the ancient Enemy of All?

The Defiant Agents

by Andre Alice Norton

Alien technology scavenged by U.S. and Russian scientists has started a race to colonize planets outside our solar system -- and the U.S. scientists are losing! In a desperate move the U.S. government decides...

The Time Traders

by Andre Alice Norton

Intelligence agents have uncovered something beyond belief, but the evidence is incontrovertible: the USA’s greatest adversary is sending its own agents back through time! And someone (or something) is presenting...

The Hunted Heroes

by Robert Silverberg

The planet itself was tough enough--barren, desolate, forbidding; enough to stop the most adventurous and dedicated. But they had to run head-on against a mad genius who had a motto: Death to all Terrans!

Spacehounds of IPC

by Edward Elmer "Doc" Smith

When the Inter-Planetary Corporation's top spaceliner Arcturus took off on a routine flight to Mars it turned out to be the beginning of a most unexpected and long voyage: attacked by a mysterious spaceship,...

The Creature from Beyond Infinity

by Henry Kuttner

Cosmic terror strikes as a messenger of death sweeps through the universe.

The Status Civilization

by Robert Sheckley

Will Barrent had no memory of his crime . . . but he found himself shipped across space to a brutal prison-planet. On Omega, his only chance to advance himself -- and stay alive -- is to commit an endless series...

Star Hunter

by Andre Alice Norton

Somewheres on the jungle world of Jumala, there was a man in hiding--a man whose mind had been reconditioned with another's brain pattern and for whom there was a fabulous reward. STAR HUNTER is a thrill-packed...