Everyone thinks that Mrs Tachyon is just the local bag lady, a bit smelly and a bit mad. But Mrs Tachyon is somehow at the centre of an amazing time travel facility. Johnny and his friends find themselves transported back 50 years, where no-one's ever heard of a biro, let alone a Big Mac.
Terry Pratchett is the acclaimed creator of the global bestselling Discworld series, the first of which, The Colour of Magic, was published in 1983. In all, he is the author of fifty bestselling books. His novels have been widely adapted for stage and screen, and he is the winner of multiple prizes, including the Carnegie Medal, as well as being awarded a knighthood for services to literature. Worldwide sales of his books now stand at 70 million, and they have been translated into thirty-seven languages.
Photography © David Bird