of Sa'id and his identity as one sought by the Abbasid government had already reached the city, and he was immediately arrested. As a result, once again Sa'id had to alter his plans: instead of crossing the Aghlabid domains and making for the country of the Kutama, he joined another caravan heading west, skirting the southern fringes of Aghlabid territory. He was accompanied only by his son and Ja'far. Pressuring and even bribing the caravan leader to make haste, they eventually arrived in Sijilmasa. An oasis town in modern eastern Morocco, Sijilmasa was the terminus of several trans-Sahara trade routes, and far from the reach of the Aghlabid emirs. Indeed, its Midrarid ruler, al-Yasa ibn Midrar, like most Berbers, espoused Kharijism, making them foes of the Abbasid caliphs. Posing once again as a wealthy merchant, Sa'id bought a nice residence in the city, and was slowly joined by the rest of his household over the following months. There he remained for the next four years, continuing his mercantile activities which apparently brought him additional wealth, all the while remaining in contact with Abu Abdallah al-Shi'i, who now embarked on the conquest of Ifriqiya. His identity did not remain a secret for too long: the Aghlabid emir, Ziyadat Allah III, informed the Midrarid emir of the true nature of the merchant from the east, but, aided by rich gifts from Sa'id, the emir of Sijilmasa saw no reason to do anything about it. Already before the conquest of the Aghabid emirate was complete, Abu Abdallah sent a troop of Kutama to escort Sa'id to Ifriqiya, but they were waylaid by the Rustamid emir of Tahert and had to turn back. Reign Establishment of the Fatimid Caliphate On 18 March 909, the Kutama under the Abu Abdallah decisively defeated the last Aghlabid army at al-Aribus. The next day, Ziyadat Allah III fled his palace city of Raqqada for Egypt, taking many of his treasures with him, but leaving most of his extensive harem behind, and taking care to torch the offices of the land tax department and all fiscal records contained therein. Chaos broke out once this became known, as the palaces were ransacked and any thought of further resistance vanished. A delegation of notables surrenderd Kairouan, and on the next day, 25 March 909, Abu Abdallah entered Raqqada and took up residence in the palace of the emir. Abu Abdallah's regency