Plot
An elderly English doctor and his 14-year old American nephew go on a perilous journey to Africa in an hot air balloon with an African guide, to retrieve a precious diamond from the top of a volcanic rock, as a gift for Queen Victoria.
| Writer | Jules Verne |
|---|---|
| Director | Chris Cuddington |
| Actor | Booker Bradshaw, Cathleen Cordell, Johnny Haymer |
| Country | Australia |
| Production | Hanna-Barbera Australia |