The Famous Five's eighteenth exciting adventure.
The Famous Five are Julian, Dick, George, Anne and, of course, Timmy the Dog. They find adventure and excitement wherever they go! How will they solve this mystery?
There's a ruined castle on Finniston Farm! But only the dungeons remain - and nobody knows where they are! The Famous Five are determined to find them - and whatever is hidden in them. But they're not alone . . .
