Walt Disney's Donald Duck: The Old Castle's Secret

Uncle Scrooge and the ducks go to Scotland to find the treasure hidden in the walls of the old McDuck castle, and there they encounter a \"ghost\" that is invisible except for the shadow cast by its skeleton. The \"ghost\" soon steals the treasure and traps the ducks on a balcony a hundred feet above the ground, but the nephews get down safely and find a secret entrance to the castle through an old graveyard.