What's Wrong? The Famous Five Party Game for Girls & Boys by Enid Blyton, Series 1, Pepys Party Games
First Published: 1953, Pepys Party Games
Illustrator or Designer: Eileen Soper
Contents: 12 cards, 4 each of 3 designs, 1 Rules Sheet.
What's Wrong? - Box Top
What's Wrong? - Rules
What's Wrong? - Card No. 1 The Famous Five as Detectives
What's Wrong? - Card No. 2 The Famous Five at Kirrin Cottage
What's Wrong? - Card No.3 The Famous Five at the Circus Camp
The Famous Five series of books by Enid Blyton and originally illustrated by Eileen A. Soper were immensely popular and they still are. The series began in 1942 with Five on a Treasure Island and concluded in 1963 with the 21st book Five Are Together Again. Pepys also published two Famous Five card games, the first was illustrated by Eileen Soper and a second edition with an uncredited illustrator to tie-in with the 1970s TV series.
What's Wrong? - Rules Back, with list of other games available.
The game bears no address and there is no mention of Castell Brothers.