Book Enid Blyton. Secret Seven. Book 1

Product description from producer

Holidays are the best time to do something fun with friends. Therefore, seven inquisitive and very smart children - brother and sister Peter and Janet and their friends Colin, Barbara, Pam, Jack and George - founded a secret society called the Secret Seven. They came up with their own badge, password, and even set up a real headquarters in the barn for holding the meeting. One day, while making snowmen near a house where no one had lived for a long time, friends noticed suspicious footprints, and this began their first investigation.