When Afrasiab discovered a few years later that this child was still living, he planned to put him to death, until the nobleman assured him the child was an idiot and would, therefore, never work him any harm.

Only half convinced, Afrasiab sent for the youth, Kai-Khosrau, who, duly instructed by his protector, returned such crazy answers to his grandfather's questions, that Afrasiab felt satisfied he was an idiot indeed.
This young prince, having attained manhood, led a rebellion so successfully that he not only dethroned his grandfather, Afrasiab, but also recovered his hereditary throne of Persia.

There he reigned for many years, at the end of which he became so anxious to leave this world, that he prayed the good god (Ormudz) to receive him in his bosom.

In a dream this divinity informed the king that, as soon as his affairs were in order and his successor named, his wish would be granted.

Kai-Khosrau, therefore, made all his arrangements, and set out on the journey to the next world, bidding his friends not try to accompany him, for the road would be too hard for them to travel.