Love this book - must have read it many times - one of my favourite quotes (although I could quote the whole book) is "At the top of the cellar steps Broadman knelt down and fumbled in his tinderbox. It turned out to be damp. 'I'll kill that bloody cat,' he muttered, and groped for the spare box that was normally on the ledge by the door. It was missing. Broadman said a bad word."
Makes me laugh out loud everytime I read it. I think its because there are all these very magical characters, who use the language of us normal (?) human beings and it makes for very funny juxtopositions.
What do you think makes Sir Terry's books so funny ?