Shiver Me Timbers

This objective does not appear in your quest log, but it appears under RoE Quests in the Other category in the Records of Eminence menu after it is unlocked.

Walkthrough

 * After completing To Kill Mocking Birds and speaking to Duberasson in Western Adoulin, speak to Nantoto in Lower Jeuno and select the Black envelope.
 * Activate the objective in Other > RoE Quests
 * Make sure you have a Voidstone and the Amber stratum abyssite received from flagging.
 * Travel to any Arrapago Reef Planar Rift. Locations are (I-10), (G-8), and (G-10).
 * The (G-8) and (G-10) rifts require Lamian Fang Keys to access.
 * Spawn Dimgruzub by examining the Planar Rift while in possession of a Voidstone and Amber stratum abyssite.
 * Defeat Dimgruzub solo to complete the objective.