Find Outers The Mystery of the Strange Messages
The Mystery of the Strange Messages is a children’s novel written by Enid Blyton and published in 1957. It is theย fourteenth book in the Five Find-Outers seriesย featuring Fatty, Pip, Larry, Daisy, Bets and Buster the Scottie dog, as well as Mr Goon and his nephew Ern.
Souce:Wikipedia