It was brought to my attention that the story I read that I thought was written by Roald Dahl was actually just part of a collection compiled by him. "W.S." was actually written by L.P. Hartley and the text that is in the book is a renewed version by Hamish Hamilton. Sorry that I passed along false information! I feel really silly for this confusion. This is a perfect example of why you shouldn't skip the introductions in books.