The envoyship of Abū Jaʿfar al-ʿAmrī generated expectations of succession, culminating in Ibn Rawḥ al-Nawbakhtī’s accession to the role upon his death. Quasi-Imamic mechanisms of designation (naṣṣ) and initiatic inheritance (waṣiyya) were invoked to support this. However, it is argued in Chapter 6 that long-present pressures against a centralizing Imamate now led to the collapse of the envoyship. Ibn Rawḥ fell afoul of the complex machinations of the ʿAbbasid court. He was imprisoned, then was challenged by his aide, Shalmaghānī, who claimed to embody Imamate and divinity. Ibn Rawḥ issued a denunciation of Shalmaghānī, and the caliph al-Rāḍī had him executed as a heretic. However, soon after Ibn Rawḥ’s death, a rescript from the hidden Imam declared the termination of the office of envoy. Thereafter, the diffuse leadership of earlier elites, especially scholars, came to replace the centralizing bureaucratic leadership of the envoys, and the defunct envoyship was canonized as orthodox history.