Solve the mystery with the Secret Seven team - the children's favorite detective club! A brand new, action-packed adventure from the award-winning author Pamela Butchart. When Peter discovers an old skull hidden in his room, it's time for an urgent meeting of the Secret Seven team. Setting off to investigate, the friends see a giant hole in the grounds of a local hotel. Could there be a connection between these two strange events? The Secret Seven team is determined to solve the mystery. It's time to take another peek behind the green door of their shed. Enid Blyton's much-loved detective team returns in an exceedingly entertaining new adventure. Pamela Butchart is the author of the bestselling and award-winning series that began with 'Baby Aliens Got My Teacher!' As a huge Enid Blyton fan, she was inspired to create a new mystery for her favorite team, Secret Seven, to solve. The text comes alive with stunning illustrations by Tony Ross. Join the Secret Seven team for more mysteries, excitement, friendship, and FUN than ever before! Read all 15 stories of the original Secret Seven series and don’t miss Pamela Butchart’s next adventure with the Secret Seven... Don’t forget the Secret Seven Puzzles too - a fun and challenging puzzle book!