This paper presents the results of a cooperative inquiry study aimed at developing a prototype of enhanced eBook for leisure reading. Together with a group of 9 to 11 years old children we explored various design ideas and, starting from these ideas, we developed the eBook prototype and elaborated a shortlist of recommendations. The paper aims to extend the research on the design of children's eBooks with a set of six guidelines that are intended to help designers in creating better and more engaging eBooks. Copyright is held by the owner/author(s).