The Defiant Agents
In this near future book the US is in a race with the Russians to use alien technology scavenged from crashed spaceships to colonize planets outside our solar system. Because they feel that they are in dange of losing this race, men working for the United States government have decided to use a group of volunteers from the Apache tribe as subjects in an experiment without their knowledge.
By use of the Redax, the volunteers will be made to think and act as Apaches of the 18th and 19th centuries would respond. It is hoped this would help them better adapt to life on a primative planet. However, the spaceship they are traveling in crashes on the planet of Topaz.
Travis Fox escapes with a group of the surviving volunteers. In exploring the planet he learns that they are not the only group on the planet. The Russians using their own version of the Redax have Mongol nomads as their subjects.
Andre Norton
Andre Alice Norton (1912-2005) was an American science fiction and fantasy author (with some works of historical fiction and contemporary fiction) under the noms de plume Andre Norton, Andrew North and Allen Weston. Norton published her first novel in 1934, and was the first woman to receive the Gandalf Grand Master Award from the World Science Fiction Society in 1977, and won the Damon Knight Memorial Grand Master Award from the Science Fiction and Fantasy Writers of America (SFWA) association in 1983.
The Time Traders
The Time Traders is also known as Ross Murdock and Time War.
The Time Traders consists of seven books. The current recommended reading order for the series is provided below.