Set in the summer of 2022, during an unprecedented drought that exposes the riverbed of the Po, the novel begins with the death of Ilario Nevi, a former partisan, artist, and public intellectual. As his granddaughter Antonia investigates a long-buried family secret, she uncovers a story that spans nearly a century, linking the Italian Resistance, the social and environmental history of the Po Delta, and the lives of generations shaped by the river. Blending family saga, historical fiction, and ecological reflection, the novel explores the enduring connections between memory, landscape, and collective history.