Rox's Secret Code is an educational project blending physical literature with Augmented Reality to teach young girls the fundamentals of coding. Built in Unity and available for iOS and Android, the companion mobile app features an AR game that overlays directly onto the printed pages, bringing the story's robot protagonist to life. We created all custom 3D assets and developed the application to seamlessly interact with the physical book, utilizing gamification to translate programming concepts into an interactive, high-fidelity learning experience.