Man and Centaur fought to free a girl--and the fate of all mankind hung in the balance... Excerpt “I will go talk to Gomar," Lion thought desperately. "Gomar will know what to do." With one last look...

The flame beast brought sure death to its enemies-- and little better to its friends! Excerpt "Asteroid at three o'clock high!" The voice of the technician manning the forward radar look-out position...

The savage code of Martians was as ruthless as desert they lived on and more valuable than millions of gems... Excerpt “You dirty devil! They'll hang you for this!" Ann Roberts blazed. "Shut up!" Red...

Men have fought and died for life and liberty since the beginning of time, and they will continue the fight until time finally comes to an end. Here is a thoroughly readable story about just such a situation--a...

In the midst of the war - that terrible conflict that threatened humanity's total destruction - the "new people" suddenly appeared. Quietly performing incredible deeds, vanishing at will, they were an...

Men have fought and died for life and liberty since the beginning of time, and they will continue the fight until time finally comes to an end. Here is a thoroughly readable story about just such a situation—a...

The weird, invisible insect depopulated an entire planet. Now it was felling Thompson’s crew as his ship hurtled toward the sun ... certain death for all, including the disease carrier. Forgotten in the...

It was like a mirage in reverse, this strange island off the California coast. It couldn't always be seen, but it was always there in Time.