Following the highly successful Famous Five 70th anniversary celebrations and reissues, the next classic Blyton series gets a brand-new look for today's readers from best-loved illustrator Tony Ross.

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. Also available in audiobook!

In book five, a sinister-looking man gets George in trouble with the police. The Secret Seven are outraged. Spying on him, the gang are certain he's bad news, but what exactly is he up to?They need to investigate, and solve the mystery, once and for all

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 1953. This edition features the classic text and comes with a Bonus Blyton section at the back with quizzes, puzzles and other bonus extras!

Enid Blyton ®, The Secret Seven ® and Enid Blyton's signature are Registered Trademarks of Hodder and Stoughton Limited. No trademark or copyrighted material may be reproduced without the express written permission of the trademark and copyright owner.