Solve the mystery with the Secret Seven - everyone's favorite detective club! These timeless stories are perfect for young fans of mysteries, adventure, and detectives. In the twelfth volume, strange things are happening at Torling Castle! Someone is hiding in the ruined tower, causing turmoil among the resident magpies. Who are they and what do they want? The Secret Seven are on the case! Artistic cover and interior illustrations by the exceptional Tony Ross, illustrator of David Walliams' books. The story was first published in 1960. This edition includes the classic text and is accompanied by an additional section on the Secret Seven with quizzes, puzzles, and more extras! Have you read all 15 books of the original Secret Seven series by Enid Blyton? And don't miss these other Secret Seven titles... The Secret of Skull - a brand-new Secret Seven mystery by award-winning author Pamela Butchart. Secret Seven Brain Games - a fun and challenging puzzle book.