Five Have a Mystery to Solve (1964)
Four cousins meet a new friend who has strange powers over all the animals on Whispering Island. After discovering the crusader's treasure, they are imprisoned in a flooded dungeon.
- Country : United Kingdom
- Genre : Family
- Studio : Children's Film Foundation (CFF)
- Director : Ernest Morris
- Cast : David Palmer, Darryl Read, Mandy Harper, Paula Boyd, Michael Balfour, Keith Pyott