The White Mountains (The Tripods #1)
Young Will Parker and his companions make a perilous journey toward an outpost of freedom where they hope to escape from the ruling Tripods, who capture mature human beings and make them docile, obedient servants.
-------
-------
This is the first book of the original Tripods trilogy written under the name John Christopher. These young adult science fiction stories are set on Earth ruled by the alien Tripods. A prequel detailing the conquest was added 20 years later.

*John Christopher is a pseudonym of Sam Youd.*

The series:
0.5 (Prequel) When the Tripods Came (1988)
1. The White Mountains (1967)
2. The City of Gold and Lead (1967)
3. The Pool of Fire (1968)
young adult, Extraterrestrial beings, Freedom, aliens, teenagers
Sam Youd
Sam Youd, who wrote under a number of pseudonyms is particularly noted for his works written as **John Christopher** such as the *Tripods Trilogy* or the *Sword of the Spirits Trilogy*.

Sam Youd was born in Huyton, Lancashire (though Youd is an old Cheshire surname). He adopted the name Christopher Samuel Youd for his professional writings, leading to the widespread but mistaken belief that that was his birth name. Throughout his life he was known simply as Sam to his friends and acquaintances.