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 four, something mysterious is going on at Tigger's Barn, and the Secret Seven are intrigued. Peter thinks it's all just gossip, but Jack isn't so sure when he overhears a strange conversation. It looks like the Seven are on the trail of another exciting adventure!