Sometime after the battle, Coriantumr wanders around, and somehow stumbles upon the Mulekites, or “people of Zarahemla” who had recently arrived from Jerusalem. He spends some time with them, and then leaves, never to be heard from again.
Coriantumr Stumbles into Zarahemla
Several centuries later, the search party dispatched by Limhi tries to find Zarahemla, but instead come across the ruins of the Jaredite civilization, where they find the record that Ether wrote. They take the record back with them, and it is eventually translated by King Mosiah.
The record eventually reaches Moroni, who again translates it and adds his synopsis to his father’s record.
Moroni Translates and Abridges the Jaredite Record
The Last Battle