Search Worlds Without End

They called it TTT-short for Time Teleportation Technique. Like all really great ideas, it was simple, and easy to operate-too easy, for Chuck Percival, who suddenly found himself drafted into an army dedicated to defending yesterday against today... and captained by strange men from tomorrow!

Chuck found the idea of time travel intriguing, but he was by nature suspicious of people wanting to do him favors-and vice-versa. And time travel turned out to have a couple of nasty side effects that made the price of time jumping almost too high to pay. But like it or not, Chuck found himself in this particular army for the duration--a duration that might last several hundred years! What happened to him shouldn't happen to any devout twentieth century coward... including meeting and falling in love with his own great grandmother!

The Stars Are Ours!

Dard Nordis grew up in a world that had been devastated by atomic catastrophe. The remnants of humanity had set up an iron dictatorship to hunt out and destroy the last free bands of scientists, hiding in mountains and caves. And the day came when Dard's secret laboratory home was raided - and he escaped by the skin of his teeth.

Where else could men go to keep the torch of liberty and knowlkedge burning? Dard's martyred brother had given him a key to that unknown haven, but how could dard learn to use it? Where were the engineers and their spaceships hidden?

Three Faces of Time

Elspeth Marriner, once an ace journalist, is now a Time Watcher working from the mysterious House of Many Worlds. On some parallel time-tracks, Earth's cultures lag thousands of years behind our own. On others, science is far in advance of ours. As a Watcher, Elspeth's job is to keep advanced Earths that had discovered the existence of their parallel sisters from invading and exploiting those that were less advanced. Now the Watchers have discovered that the power-hungry dictator of one far-advanced civilization, having devastated his own Earth, has already infiltrated a parallel Earth still in the age of the Roman Empire, and is seeking to conquer it! Though chariots roll through the streets, and men with swords guard the cities, flying tanks and atomic artillery are gathering in secret behind the walls!

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.

Due to his research into the lives of geniuses, Dr Julius Conrad of the Wellington Institute for the Study of the Humanities has developed a radical hypothesis: Namely, that the work of most geniuses, past and present, has been directed by minds from a ruthless future which take possession of either the unstable geniuses themselves or else of unstable people who are in a position to change the course of the geniuses' work. When Conrad is murdered on the eve of announcing his theory, journalist Henry Sanford and the Institute's brainy Liza Drew investigate. Soon the pair discover their own lives are in jeopardy, for the people of the future are determined that no one of our era will ever reveal their existence or the role they play in human history.

TO SAVE THE WORLD, THEY PLOTTED TO WIPE OUT ALL MALES!

This science fiction classic begins when Larry Finlay, a young and unsuspecting chemist, discovers sinister forces have taken an interest in his new approach to the seemingly innocuous problem of hemophilia. Soon, Finlay is unwittingly caught up in a nightmare plot of violence and counter-violence. Behind it is the sinister cabal that calls itself The White Widows. But who are what are they? When Larry learns all these events are tied in to the concept of parthenogenesis, he realizes that a certain woman scientist has found the secret of giving birth without the need of males. She and the other White Widows are determined to end war, greed, violence, poverty, and the idea of cut-throat competition by eliminating all men! Particularly the man named Larry Finlay! The only person he can turn to for help is the woman he loves. If he can trust her with his life... And he'll have to!