Mary Grueso is a poet, oral storyteller, writer, activist, teacher and one of the most prominent voices of the Colombian Pacific. Agüela, se fue la nuna is a book about a child who wants to understand what has happened to the moon; his wise agüela offers to help, and together they go on an adventure in which they discover not only the secrets of our moon, but also about Tumaco, its games, everyday life, and knowledge.