Many older adults (OA) enjoy sharing narratives during social gatherings. However, in Mexico, little efforts have been directed to promote the creation of narratives and facilitate individuals to share them. The existing spaces, such as the `tertulias' (informal but periodic social gatherings), are both limited in space and time. Moreover, their members regret the lack of devices for recording and broadcasting discussions they hold during these social gatherings. In this paper, we present the design of Tertulibro, an interactive device that looks like a book and integrates physical and digital media to help individuals assisting to Tertulias share their discussions and narratives in a natural way. Tertulibro followed a user-centered design methodology and rapid contextual design techniques including participatory design sessions, interviews, observation, and scenario design. We close presenting our conclusions and future work.