Nephthys

Nephthys was the sister and wife of Sutekh. While her husband was trapped in a pyramid on Earth by the Eye of Horus, her mind was split up into two parts: her instinct which was stored in a woman who was mummified alive, and her reasoning in a canoptic jar. The reason of this punishment was that she was judged more dangerous than even Sutekh. (MA: The Sands of Time)