Seshru is the Viper Mage and later revealed to be Renn's mother. However, she has no maternal instinct, in that she planned to use Renn to create a tokoroth. She was killed by Bale, Torak's kinsman, in the fourth book, and with her, the power of one piece of the fire-opal disappears. She has black hair and pail skin like Renn that is how Torak mistakes Seshru for Renn in one part of outcast. Seshru also chews a herb/root that turns her mouth black it also turns her lips black Aswell