Who was John Christopher?

Sam Youd was born in Lancashire in April 1922, during an unseasonable snowstorm.

As a young boy, he was devoted to the newly emergent genre of science-fiction: ‘In the early thirties,’ he later wrote, ‘we knew just enough about the solar system for its possibilities to be a magnet to the imagination.’

Over the following decades, his imagination flowed from science-fiction into general novels, cricket novels, medical novels, gothic romances, detective thrillers, light comedies …