A nice little inside joke in Dorothy L. Sayers’s Murder Must Advertise: When Lord Peter is told that he must leave the advertising agency in which he’s working undercover, he explodes, “Dash it all, Charles! You don’t understand. It’s a really big scheme. It’ll be the biggest advertising stunt since the Mustard Club.” The Mustard Club was the most famous and successful advertising campaign created by Sayers herself when she worked for Benson’s Publicity. And I’ve just discovered that there was even a short film about the Mustard Club.
