
Description
This series explores the possibility of time travel, with scientists attempting to uncover secrets of the past and gain an advantage over rivals. The books follow individuals, often with unique skills or backgrounds, who are sent on missions into different historical periods or to alien worlds, facing challenges that test their adaptability and courage.
Books in order
Known for
Details
- 7
- 1958–2002
- 1,569 pages · about 39 hours

















