This book is a collection of articles by famous Islamic scholars dedicated to the Mahdi, the last successor of the Prophet Muhammad. In Islam, the Mahdi has a special role. He will be the harbinger of the end of the world, defeat evil and tyranny, establishing the reign of justice throughout the entire earth. “All Muslims believe in the appearance of the Mahdi, and this faith unites them. It must be shown that the expectation of the Mahdi can lift a people out of stupor and instill joy in despondent people, unite disunited wanderers into a purposeful group, turn confusion into calm, and turn a history that has no future into a line on the horizon of which the dawn of a new day looms.” The book is intended for a wide range of readers.