The royal cavalcade is on the point of starting, and to engage in such matters as the present will conduce to the disruption of the kingdom. Neither is there any doubt that the most notable doctors of the capital also will behave after the fashion of the doctors of Isfahán, which thing will be the cause of a popular outbreak, or that, according to the religion of the immaculate Imám, they will regard the blood of this Seyyid as of no account, yea, as more lawful than mother's milk. The imperial train is prepared for travel, neither is there hindrance or impediment in view. There is no doubt that the presence of the Báb will be the cause of the gravest trouble and the greatest mischief. Therefore, on the spur of the moment, the wisest plan is this:--to place this person in the Castle of Mákú during the period of absence of the royal train from the seat of the imperial throne, and to defer the obtaining of an audience to the time of return.[8] Mírzá Abu'l-Faḍl states that Ḥájí Mírzá Áqásí played on the fears of Muḥammad [_Sh_]áh by instancing in particular the rebellion in [_Kh_]urásán of Muḥammad-Ḥasan [_Kh_]án, the Sálár, and the earlier defiance of the central government by Ḥasan-`Ali [_Kh_]án, Aga Khan I.[CX] Whatever arguments the Grand Vizier used, he succeeded in preventing a meeting between the Báb and Muḥammad [_Sh_]áh in that spring of 1847. And it was never to take place. [Footnote CX: In the opinion of the present writer, the second revolt of the Aga Khan, in 1840, was entirely due to the tortuous policies and the maladroitness of Ḥájí Mírzá Áqásí himself.] In April, the [_Sh_]áh sent a reply to the letter of the Báb which, according to _A Traveller's Narrative_, was couched in these terms: Since the royal train is on the verge of departure from Teherán, to meet in a befitting manner is impossible. Do you go to Mákú and there abide and rest for a while, engaged in praying for our victorious state; and we have arranged that under all circumstances they shall shew you attention and respect. When we return from travel we will summon you specially.[9] Nabíl-i-A`ẓam, in his narrative, gives this version of the contents of Muḥammad [_Sh_]áh's letter: