Twentieth-Century El Salvador is a novel by English author Percy F. Martin that tells the story of a young, elderly teacher in El Salvador, who lives in an era of technological progress and social change. The hero finds himself in the center of political events and conflicts, trying to find his place in the modern world. Through difficult trials and moral dilemmas, Salvador makes important choices that affect not only his personal life, but events as a whole. This book opens the reader to new depths of human nature and the complexities of modern society, leaving many questions for discussion and reflection.