A blue cat named Buxton is found in the Magic Garden. With help from the Blue voice (played by Fenella Fielding), Buxton enters the ruins of the old treacle factory where he is crowned king after correctly identifying the colours of seven doors (coloured different shades of blue). Buxton throws all the characters of The Magic Roundabout except Dougal into prison and steals Zebedee's magic moustach
| Directing | Serge Danot | Director |
| Editing | Claude Levet | Assistant Editor |
| Writing | Serge Danot | Story |
| Writing | Jean-François Josselin | Writer |
| Production | L. Auclin | Producer |
| Production | L. Danot | Producer |
| Directing | Serge Danot | Stage Director |
| Directing | Claude Levet | Assistant Director |
| Writing | Jean-François Josselin | Dialogue |
| Visual Effects | Jean-Marc Cahier | Animation |
| Visual Effects | Claude Levet | Animation |
| Art | J.P. Garreau | Decorator |
| Art | J.P. Liblanc | Decorator |
| Camera | C. Giresse | Camera Operator |
| Sound | Joss Baselli | Original Music Composer |
| Production | L. Danot | Production Director |
| Production | J. Auclin | Production Director |
| Sound | E. Croix | Sound Designer |
| Crew | J. Duval | Mix Technician |
| Sound | J. Duval | Sound Recordist |
| Writing | Eric Thompson | Author |
