Book excerpt: "The Last Lords of Lalenque" is an extraordinary firsthand account of life among the Lacandon Indians of Naha in southern Mexico. A community of 250 whose genealogy has been obscured by the absence of a written tradition, the Lacandones may nevertheless be traced back linguistically and culturally to the great Maya civilization. They are the sole inheritors of an oral tradition that preserves-more than 400 years after the Spanish Conquest-a cosmology, a morality and a psychology as sophisticated as our own. Journalist and novelist Victor Perera and linguist Robert Bruce have lived among the Lacandones, chronicling their imperiled Mayan culture.