"The most exciting book for this age that I have read in yonks."
The Times
"A warmhearted story...Illustrations by Axel Scheffler perfectly capture the droll humour of the stories."
Books for Keeps
"Full colour illustrations by Axel Scheffler perfectly capture the droll humour of the stories and this is one of the most enjoyable books I've read this year"
- Andrea Reece, LoveReading4Kids
"The jokes sing and we had to stop several times during the story so my giggling six-year-old boy could wipe his eyes dry"
The Times, Best Children's Books of 2019
"Alex Rühle has created a warm-hearted, smart children’s book which easily lends itself to reading aloud or on one's own. There is a lot of wordplay (not least because Zippel likes to rhyme) and impish slapstick. The brightly coloured comicbook style of Gruffalo-artist Axel Scheffler is a perfect match to the text. A story about family and everyday problems, friendship, courage and a very special little ghost"
Donaukurier