A drow mage of the Order of the Purple Robes specializing in illusion magic.
He was present at the formal dinner in the Luminous Cloud Citadel. Seems to have a crush on Lavinia.
Under a deal brokered through Father Rogers, who appeared in his dreams, Meredin administered a slow poison to Eszteban over a long period. Meredin was present in the tower invisibly during the final confrontation, and killed Eszteban by throwing a dagger into his throat. He claimed not to have been sent by Lavinia and appeared to be acting under an external influence rather than purely on his own initiative.
The party took his Ring of Invisibility and temporarily his spellbook. He was initially left for the Order council to judge; the council subsequently resolved to imprison him.