Paco Boya's novel, which is already being translated into Aranese, delves into the idea that memory is a reconstruction and recreation of remembrance, a story that passes through the heart and mind of the witness. This perspective aligns with the concept of the duty of memory by philosopher Paul Ricoeur, who understands memory not as a simple description of the past, but as a refiguration through narrative.

Thus, personal and collective memory intertwine to articulate a dynamic narrative identity, built from language and time. The work narrates the story of a family and the country from the perspective of a witness born in 1960, who emphasizes that the Civil War did not end with the silence of weapons, but continued to be present in subsequent generations, including the Val d'Aran of his childhood and adolescence, where money was a scarce and desired commodity.

One of the main merits of Bajo el mismo cielo is its ability to narrate, with precise and careful syntax, the war and post-war period in the region. From this wound, stories intersect with events such as the assassination of Florentino Tuñón, mayor of Vielha, serving as a premonition of the war.

Family and country suffer again in the internment camps where France confined Spanish refugees. Fascism gained ground on the roots of hatred, a "malignant seed that permeated people's lives." This hatred is what Pepita discovers upon returning home, which has been looted as an act of revenge. Dedicated to Conchita and Manolo, with their fears and hopes, the author seeks to illuminate a past of "dense grayness" and, at the same time, our present, where difference also becomes a "driver of hatred," a monster that threatens all humanity and which it is a duty to save under the sky of memory.