This paper reviews Forrahue. Matanza de 1912, written by the Mapuche writer Bernardo Colipán and co-authored with the Forrahue indigenous community located in Southern Chile. The book is a testimonial text that acts as a legal document and seeks to restore the truth in the context of Chile’s historical account and collective memory. This text includes diagrams, photos and fragments in various types of handwriting, which we consider relevant in the reading and interpretation of this cultural artifact. From a symbolic perspective, the book is the place where the unburied bodies rest, allowing both the Chilean and Mapuche communities to mourn.