ENVOY TO THE WORLDS by Keith Laumer
The authorized history of the frontier worlds of the 29th century is readily available to anyone who cares to pore through the official files of the Terrestrial Diplomatic Corps.
For serious students of history, however, it would be well to read between the lines of what has been set down for posterity. The records, for example, fail to grasp the full significance of the work done by a career diplomat named Jame Retief, in his efforts to alleviate strife on the emerging planets of our galaxy.
Contained here are several accounts of Retief's contribution to the peace of the universe—written in the hope that the injustice committed by the history books will thus be rectified.

FLIGHT FROM YESTERDAY by Robert Moore Williams
They reversed time to win a world.
Keth Ard was a man long out of a job- and money was running low. His experience as a test pilot seemed to qualify him for the mysterious as he found in the paper.
So he headed for the Beacon Street address and there encountered:
A man in a blue toga who made a habit of vanishing;
A girl with red hair that continually burst into flames;
A power beam that turned a breeze into a tornado;
A green stone that turned the past into the present and the present into the future.