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. Book 4: Secret Seven on the Trail (first published in 1952) Something mysterious is going on at Tigger's Barn, and the Seven are intrigued. When Jack overhears a strange conversation, it's time for the Seven to leap into action ... Book 5: Go Ahead, Secret Seven (first published in 1953) What exactly is the sinister-looking man up to and why does he want to get George into trouble? Will the Seven get to the bottom of the mystery before it's too late? Book 6: Good Work, Secret Seven (first published in 1954) A car is stolen and Peter and Janet are the only witnesses. But have the Seven got themselves too deep into a mystery that is beyond their powers to solve? This collection features the original text. Both cover and inside illustrations were created by Tony Ross in 2013.