Preperations are under way for the Full-Moon Fete and the Great Ghastly-Gorm Bake Off.
Celebrity cooks are arriving at the hall for the big event, and as usual Maltravers is acting suspiciously. On top of all this, Ada's elusive lady's made Marylebone has a surprising secret, and everyone seems to have forgotten Ada's birthday!
Chris Riddell is an accomplished graphic artist who has illustrated many acclaimed books for children. He is also political cartoonist for The Observer. He has won the Kate Greenaway Medal twice and the Nestlé Smarties Book Prize seven times.