Jhesiyra Kestellharp

Jhesiyra Kestellharp was one of Halaster's seven apprentices who accompanied him to Undermountain. She is noted as the primary source of information on Halaster as she was the only one of the seven ever recorded leaving those halls.

Biography
She traveled to Myth Drannor where she studied magic among the elves before she became Magister in 658 DR after the electrocution of Dathchaunt Sandrach. She experimented with the creation of sentient spells, basing her research on the elven theory of arcanaweaves, re-invigorating their research with her human passion and binding herself into the magic. In 667 DR, in an incident neither Azuth nor Mystra were willing to speak of, the mantle of Magister passed from Jhesiyra to Nerren Prentiyuel.

For reasons unknown, Jhesiyra transformed herself into a living wish spell to attempt escape from Halaster, but was brought back to Undermountain by Halaster. She currently rules over other living spells in Undermountain's Citadel of the Bloody Hand. Driven half mad by her transformation, she rules over the living spells the Mad Mage forced her to create, and it is uncertain whether she is truly aware of Halaster's demise.