Where could Mr Goon's nephew have disappeared to? Mr Goon has forbidden the Five Find-Outers from solving mysteries - so they decide to make one up for his nephew, Ern! But what will happen when Ern disappears, and their pretend mystery turns into a real one?
- ISBN10 1405228377
- ISBN13 9781405228374
- Publish Date 27 February 2006 (first published October 1966)
- Publish Status Out of Print
- Out of Print 27 April 2016
- Publish Country GB
- Publisher Egmont UK Ltd
- Imprint Egmont Books Ltd
- Format Paperback
- Language English