Table of Contents
Fenthaza
see chapter 4, TOA p239 for stat block
The yuan-ti nightmare speaker Fenthaza believes that the Black Opal Crown is the key to awakening Dendar the Night Serpent. Fenthaza's constant obsessing has allowed him a weak ability to roughly track its location. This 'ability' may or may not be delusion.
The crown rests in the maze of death (area 49). ToA p 161. Fenthaza does not know the exact location or path to it, but will either follow the party into the dungeon to seek it out, or send a trusted servant to do so. (if one exists). Perhaps even strike a deal with the party to retrieve it.
If the characters find the crown, Fenthaza will use any means necessary to obtain it from them before they escape Chult with it.
The Black Opal Crown was once worn by the archmage Sadamor of Netheril. Legend speaks of how Sadamor saw the depths of humanity's evil reflected in the opal of his crown. Heartbroken, he created a doomsday device—a sphere of annihilation—to swallow the world but was consumed by his own creation.