Tahta al-zará. A dream under the earth arises from the need to generate bridges between the society and their History, which is materialized in the archaeological heritage of the city of Murcia. I believe that the remembrance of the past can be enhanced through the evocative power of a fictional story in conjunction with the features of a physical space in which the historical events are contextualized. Starting from this symbiosis, I defined a new artistic format coined as “walking picture book” and materialized it in a concrete publication titled “Tahta al-zará”. The story takes place in the XIII century (end of the Muslim mandate in Madinat Mursiya, Spain) and works as an invitation to follow the footsteps of a Muslim girl along Mursiya transferred to the city of the present. This creates an enriched experience where Institutional History and day-to-day stories intermix each other.