This Trilogy presents the lives of Shaykh Salmán, Nabíl-i-A'zam and Mullá Sádiq, three personages closely related to the early years of the Bahá'í Faith in Persia.

Shaykh Salmán was Bahá'u'lláh's on-foot courier travelling annually between Persia and the Holy Land. Nabíl-i-A'zam was the chronicler who carefully documented events of the Heroic Age of the Bahá'í Faith and a talented poet. Mullá Sádiq stood out as the one who travelled broadly disseminating the new Faith with wisdom, dignity and grace. The first was illiterate, while the second was a self-made scholar who started out in life as a shepherd, whereas Mullá Sádiq came from an educated family of means.

Empowered by faith, certitude, and love to Bahá'u'lláh, these three men became a new creation, the like of whom we rarely see in human existence. To their wonder, amazing capacities and invincible powers became theirs, which made it possible for them to endure the most formidable vicissitudes with an ever-increasing spirit of faith and certitude. After glimpsing the greatness of such a Message, nothing had the power to deter them in their path of service—not age, nor lack of means, nor family circumstances, nor the constant danger of being beaten and killed.