"La ley de la frontera" is a novel written by Javier Cercas that tells the story of Ignacio Cañas, a young man who lives on the border between Spain and France. Ignacio is a troubled teenager who gets involved in a series of criminal activities, including drug trafficking and smuggling. As he navigates the dangerous world of the border, Ignacio must confront his own demons and decide what kind of person he wants to be. The novel explores themes of identity, morality, and the consequences of one's actions. "La ley de la frontera" is a gripping and thought-provoking story that will keep readers on the edge of their seats until the very end.