MOON TREK The daring space travelers of Moonbase Alpha face new terrors as they wander through the silent stars! A treacherous woman uses Alpha in an interplanetary war that's been stalemated for centuries . . . An innocent seance conjures up an invisible devil with deadly powers of possession . . . Alpha prepares to be engulfed by a living meteorite . . . And what seems to be Alpha's final battle draws to a close when Commander Koenig chooses certain death over life!

WARRING MUTANTS! A lush, green planet beckons from Main Mission Control's star-scanning screen . . . and to the homeless Alphans, it looks like Earth. But descent reveals a wasteland of towering, silent cities, mute testimony to an atomic holocaust! Two pockets of civilization survive: the drug-controlled inhabitants of Caster, and the freedom-loving people of Hyria. Soon the Alphans find themselves caught in the treacherous quicksands of civil war, their only allies a beautiful Hyrian with golden-brown eyes and an ancient man, last custodian of the old wisdom.

INTO THE LAND OF THE DEADLY ROBOTS! The mysterious planet Pelorus stares out of Main Mission Control's star-scanning system like a monstrous orange unblinking eye. Is it daring Alpha to make the first move? Or is Pelorus—millions of light-years from Mother Earth—their long-awaited new home? The Alphans make their fateful choice, and they are thrust into the heart of an android world where superhuman beings wield bizarre weapons. Their only chance of rescue is to trust a humanoid tribe whose friendly smiles hide a secret of devastating impact!

THEIR ONLY WORLD IS THE MOON—WITHOUT THE EARTH! A freak explosion blasts the moon out of orbit. And the men and women of Moonbase Alpha unwittingly become courageous travelers on man's first intergalactic odyssey. Joy turns into terror when Alpha's first infant grows up in a matter of seconds . . . an alien "gift" transforms the barren moon into a sunny Eden . . . a deadly but primitive rocket from Earth makes Alpha the target for mass revenge . . . and the interstellar journey becomes a personal hell for the crew when they see how their lives might have been!

INTERSTELLAR ODYSSEY! The undaunted Alphans are threatened by alien terrors as they challenge the ghostly forces of the galaxy! When an ancient space scientist dies, he leaves Alpha his legacy—a futuristic Frankenstein whose need for companionship may trap John Koenig for eternity . . . Alpha answers a cry for help and boards a huge vessel swarming with natives whose survival is horrifying . . . Emotions explode when four Alphans meet an uncanny space demon and only one lives to tell about it . . . And the Alphans discover the desolate planet that spread the first seeds of life on Earth.