Time Takes Its Toll

Story

"I will never forgive you, Akarios! If only you'd kept your promise!"

Teina's bracelet was recovered, and you went to return it to Reda. By that point, Reda had forfeited all right to her position as the High Priestess of Illusion.
She had used dark magic to bring Teina back, but all that remained was a soulless shell that merely resembled her.
Reda was ultimately consumed by hatred toward Phernos and became a monster consumed by dark magic.

Completion

Talk to Phernos at the Illusion Hideout entrance