The Secret Seven are siblings Peter and Janet, and Jack, Barbara, Pam, Colin and George. Together they are The Secret Seven - ready to solve any mystery, any time - in Enid Blyton's classic series of 15 mystery novels.
In book two a priceless pearl necklace goes missing. The Secret Seven are first off the mark to catch the thief. Why? Because they saw him making his escape!
Now all they have to do is find the necklace.
First published in 1950, this edition features the original text and artwork.
"Secret Seven Adventure" has been reissued in its original form to commemorate the centenary of Enid Blyton's birth.
Enid Blyton's books have sold over 500 million copies and have been translated into other languages more often than any other children's author.
She wrote over 600 books and hundreds of short stories, including favourites such as The Famous Five,The Secret Seven, The Magic Faraway Tree, Malory Towers and Noddy.
Born in London in 1897, Enid lived much of her life in Buckinghamshire and adored dogs, gardening and the countryside. She died in 1968 but remains one of the world's best-loved storytellers.