"O Atheneu (chronica de saudades)" by Raul Pompéia is a novel published in 1888. This impressionistic work follows young Sérgio as he enters the Ateneu, a prestigious boarding school in Rio de Janeiro ruled by the rigid director Aristarco. Separated from his family's protection, Sérgio discovers a harsh microcosm where strength prevails over compassion. Through betrayals, troubled friendships, and disillusionment, he confronts the brutal realities of an institution that mirrors Brazilian society's darker aspects at the century's end.