Search Worlds Without End

Contains both The House of Many Worlds (1951) and Three Faces of Time (1955).

THE CLASSIC OF ALTERNATE EARTHS!

Ancient, encrusted with legend, supposedly empty, the old mansion on Spindrift Key stood like a dark and lowering wraith. Reporter Elspeth Marriner's nose for news leads her into a world of trouble. Make that, in worlds of trouble. When she and photographer Mack Fraser, the man she loves to hate, are sent to investigate the old mansion in the Hatteras, they never dream that once inside their lives will never be the same. For the house is a gateway to alternate Earths, watched over by a mysterious group called the Workers, who guard against more advanced civilizations crossing the dimensional barriers to conquer defenseless neighbors. From the Workers, Elspeth learns that her and Mack's presence at the house is no accident. They have been personally selected by the Workers for a dangerous assignment. Their unique combination of talents and knowledge are needed to counter a threat that could plunge the entire world into war. If Elspeth accepted the assignment, she would have to cross to another world, aided only by her native ingenuity, then surmount a succession of plots and counterplots, with death the price of failure. Worse, she would have to work more closely than ever with the detested Mark Fraser.

Terrifying disturbances have been reported in the Uranium mines of Fortuna. The minors have come to believe that they are haunted, and the delays in production have attracted the attention of the Royal Atomic Energy Commission. Their agent arrives to discover one of the mine's owners, a young woman of unknown origin, living in terror of the other, an old man with mad dreams of immortality. They follow a mysterious and ruthless would-be goddess into another world, where masked beings of pure energy have enslaved the population for thousands of years, drawing their titanic power from the unfathomable Well of the Worlds.

How can Thorn fight a dream foe -- risking life and sanity, that is exactly what he sets out to do . . . and his shrewd tactics and reckless daring create a pulse-hammering story against an all to real opponent!