exchange with Baháʼu'lláh to have been a fulfillment of the Báb's promise that Mullá Husayn would discover a secret of great importance in Tehran. After receiving news of Baháʼu'lláh's conversion, Mullá Husayn departed from Tehran for Mashhad, in his home province of Khorasan. Mashhad As news of his preaching spread and the number of converts to Bábism continued to grow throughout the country, Mullá Husayn no longer arrived unexpected in new cities. In Mashhad, public debate about the religion of the Báb was already ongoing when he arrived, and the clergy had organized to debate and oppose him. He preached from the pulpit of the Goharshad Mosque in Mashhad and succeeded in converting a number of prominent ecclesiastical leaders of Mashhad through public debates and private audiences. From Mashhad, Mullá Husayn wrote to the Báb, sharing news of conversions in Isfahan, and Tehran, with particular emphasis on the conversion and subsequent evangelism efforts of Baháʼu'lláh. Shiraz In the spring of 1845 Mullá Husayn received news that Bábís wishing to visit the Báb after his return from pilgrimage had been instructed to gather in Isfahan. Mullá Husayn, currently en route to Karbala, met with a group of pilgrims and in Isfahan. After only a few days, he received news that Quddús and another prominent Bábí had been arrested in Shiraz after their pilgrimage with the Báb and publicly tortured and banished, while the Báb was under house arrest in the home of his uncle Hajji Mirza Sayyid 'Ali. Along with his brother and nephew, Mullá Husayn made their way into Shiraz overnight in disguise. After making contact with that uncle of the Báb, the three of them were able to take up temporary residence in Shiraz and received permission to invite the Bábís gathered in Isfahan to gradually make their way into the city. As the number of Bábís in Shiraz grew, opposition to the Báb and Mullá Husayn increased, particularly when the Báb began to give public addresses and sermons, and was engaged in debates by local clerics. The Báb eventually dismissed all the Bábís resident in Shiraz, including Mullá Husayn, whom he directed to return to Khorasan. Maku After being directed by the Báb to return to Khorasan, Mullá Husayn continued spreading Babism in Mashhad and throughout the province. During his time in Mashhad, a rebellion against the government of the Shah broke out in Khorasan, involving an alliance