John Christopher R.I.P.

Samuel Youd, better known to horror, science-fiction, and fantasy readers as John Christopher, passed away Friday at the age of 89. The author of over fifty novels — including The Death of Grass, The Little People, The Guardians, and The Year of the Comet — he was perhaps best known for the Tripods series (The White Mountains, The City of Gold and Lead, The Pool of Fire, and When the Tripods Came), and was renowned for his contributions to post-apocalyptic fiction. He also wrote numerous short stories for magazines such as Weird Tales, Orbit, Nebula, Galaxy, and others. Here's a nice tribute to him at Survival Weekly.