Long ago, the Tripods - huge, three-legged machines - descended upon Earth and took control. Now people unquestioningly accept the Tripods' power. They have no control over their thoughts or their lives.
But for a brief time in each person's life - in childhood - he is not a slave. For Will his time of freedom is about to end - unless he can escape to the White Mountains, where the possibility of freedom still exists.
Christoper Samuel Youd, a.k.a. John Christopher (1922-2012), was a British science fiction author. He is best known for The Tripods trilogy.