I’ve been working on a BBC Radio 4 documentary about John Wyndham, whose The Midwich Cuckoos, I adapted some years ago. The documentary will cover his life and work and is due to be broadcast shortly before Christmas this year. I've been to his old school, the place he lived most of his life, and Kew Gardens... It’s designed to mark the 60th anniversary of The Day of the Triffids’ first publication in 2011.