Recently several researchers have developed augmented reality books which involve overlaying virtual content onto the pages of a real book. In this paper, we extend this general concept by adding virtual visual and auditory enhancements to an already published book. Together with the author and professionals in education we have explored various alternatives of combining virtual and real content, new dedicated interactions techniques, and visual effects to enhance immersion. In this paper we report on the design and development of a new type of ’mixed reality book’. We also summarize user feedback collected during different user trials and demonstrations of the prototype.