Enid Blyton: The Famous Five 21 - Five are together again

She rushed out her bedroom, yelling , ‘THIEVES! ROBBERS! COME QUICKLY!’

Big hollow is a mysterious and brooding place, where the Famous Five are camping out.

Nearby lives a famous scientist, and one night some top-secret papers are taken from his house. But they were hidden high up in a tower, which is impossible to reach! How could they have been stolen – and can the Five find the thieves the secrets are revealed?