The eccentric Mrs Muffly lives alone. One day, when she starts to act strangely, the writer assumes that she is hiding a monster in her house. This is the only possible explanation for her bizarre purchases of large amounts of sugar, butter, eggs, flour and jam. At the very end of the book, the reader discovers the monster - and it's not the blue, rather elegant one that the writer has been imagining.
The collage-style and pencil crayon graphics are intriguing, with trees made from textiles and mountains made from map drawings. It is a really imaginative book which can be read alone by Key Stage 1 children. It would also make a perfect bed time book to read to a younger child or any child who loves to use their imagination to find creative answers to intriguing questions.