Sirrul-Khilafah is an Arabic treatise penned by the Promised Messiah^(as)—Hazrat Mirza Ghulam Ahmad of Qadian—and published in July 1894. The book unveils the mystery surrounding Khilafah as the means by which the hidden hand of God dispels the darkness of an era and replaces fear with security for the Ummah. In such trying times, Allah raises a Khalifah and breathes into him the spirit to revive a nation against the impending thre...