| Auteur | Haddon, Mark |
| ISBN | 9780385616294 |
| Uitgeverij |
Originally published in 1992 under the unpronouncable title }Gridzbi Spudvetch!{, this has been completely rewritten by the author, who also wrote the bestselling }The Curious Incident Of The Dog In The Night-Time{. Jim and his friend Charlie bug the school staff room and are shocked to hear the teachers speaking a different language. But what coul
