Theology, the second book in the Druze Trilogy, examines the Fatimi rule and the period during which the Druze Call was initiated. The Call is discussed in detail, including background, proclaimers and the periods of suspension. This followed by a roundup of the Epistles of Wisdom, the Druze sacred books. The topics of theosophy and spirituality are investigated with some expansion on esotericism, Hermeticism, mysticism, Gnosticism, Ismailism, and Sufism. The book concludes with a large section on Tawheed (Unitarianism), the essence of the Druze faith. That section includes the concepts and principles of Tawheed, God, creation, reincarnation, and the doctrines.