Baffling robberies from locked rooms, cunning crimes and mysterious murders...these were all part...

Gerald Dawson was the first to die--in an apparent road accident. But when other members of his f...

In the tradition of the old Ace Doubles (flip one side over to read the second book), here's the ...

This first book publication of three exciting novelettes from science fiction's Golden Age includ...

When Milly Morton, confidential secretary to industrialist Mortimer Bland, deliberately smashes s...

Tarnec Brodix, super-mathematician from an external cosmos, accidentally destroys his universe. T...

Continuing their cosmic crusade among the stars, the Golden Amazon and her three companions disco...

The unfolding story of the Golden Amazon enters a new phase when she renounces all ties with the ...

To the peoples of Earth, it had seemed the perfect marriage when Violet Ray Brant--better known a...

For an illusionist to make a woman vanish from a cage is merely a parlor trick, because the perso...

'Dick opened the door again swiftly, Vera clinging to him--and they were so astounded at what the...