A thrilling mystery adventure set in Bletchley Park at the start of World War II, based on true historical events. Twelve-year-old Robyn has grown up in Bletchley Park, where her father works as a driver. When she's not at school, there's nothing she likes more than helping her dad in the garages. Then the war begins and everything at Bletchley changes. Robyn is assigned to help with the carrier pigeons that take messages to the Allies. But first, she must sign the Official Secrets Act and is ordered not to leave the grounds of the park. While Bletchley is buzzing with people recruited for the war effort and all eyes are on the skies, Robyn becomes convinced that there's something sinister going on within Bletchley Park itself. Together with her friends Mary and Ned, Robyn resolves to uncover the enemy in their midst . . . A gripping wartime story, perfect for fans of Phil Earle, Robin Stevens, Lesley Parr and Hilary McKay.

Four girls - Mary, Bea, Meena and Atlanta are thrown together - picked for very different reasons by their teacher - to form a book review club where their discussions and reviews will be heard on air on radio, chaired and presented by the incredibly cool Jazz. As the girls gradually relax with each other and talk more and more animatedly about what they think about the different books, they find they are learning from each other as well as about each other. And so they become friends. Until one day Mary does the unforgivable and, having flirted outrageously with Bea's new boyfriend, makes an all-out play for him. The tender new friendship of the foursome is fractured as the ramifications spill out as a rseult of what Mary has done. Narrated by the different characters in turn, this is fresh, contemporary and compulsive writing that every teenager will identify with, charting as it does the insecurities, the pushing at boundaries, and the tests of friendship that can be real moral choices that characterise growing up the world over.