In this article, we present a co-created project resulting from an action-research (MultiNumeric) : the enhancement of a printed novel with augmented reality in secondary’s French class. This project aimed to develop the student’s skills in French, digital literacy and multimodal literacy. This article, a practical documentation, is presented according to the guiding principles of co-creation, the 4Ps approach: portrait of the environment, the co-creation process, the critical description of the co-created project and the student’s productions. Finally, we present a reflexive analysis of the entire co-creation process.