Pendulum
From Author Wars - https://authorwars.com/publications/pendulum-271357.html
Overview:
- Title: Pendulum
- Author: John Christopher
- Year: 1968
- Publisher: Simon & Schuster / SFBC
- Price: $1.70
- Pages: 254
- Binding: Hardcover
- Type: Novel
- Title Reference: Pendulum
- Notes: Gutter code "17J" indicates a printing in April 1968.