Solve the mystery with the Secret Seven - everyone's favourite detective club! These timeless stories are perfect for young fans of mystery, adventure or detective series.

In book nine, a girl has mysteriously run away from home and her parents are frantic with worry. Can the Secret Seven follow the clues and catch up with the girl, or will Susie, Jack's troublesome little sister get in the way?

Solve the mystery!

Cover and inside illustrations are by the brilliant Tony Ross, illustrator of David Walliams's books. The story was first published in 1957. This edition features the classic text and comes with a Bonus Blyton section at the back with quizzes, puzzles and other bonus extras!

Have you read all 15 books in the original Secret Seven series by Enid Blyton?

And don't miss these other Secret Seven titles...

Mystery of the Skull - a brand-new Secret Seven mystery by prizewinning author Pamela Butchart.

Secret Seven Brain Games - a fun and tricky puzzle book

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The Secret Seven ®, Enid Blyton® and Enid Blyton's signature are registered trade marks of Hodder & Stoughton Limited. No trade mark or copyrighted material may be reproduced without the express written permission of the trade mark and copyright owner.