Based on the children's adventure novel by Enid Blyton, five young children come to learn the secrets of a ruined castle.
Richard Heffer
Colonel Yarmouth
Gareth Hunt
Bill Cunningham
Ian Barritt
Bill's Colleague
Colin Bruce
John Grogan
Susan George
Allie Mannering
Bernard Brown
English Officer
Stephan Grothgar
German Officer
Richard Hanson
Phillip
