Rachel

“I’m using my own pain.”
Ziede’s eyes narrowed. “It’s not nearly as likely to destroy your consciousness and enslave you to the Hierarch’s Well, but it’s hardly an inexhaustible source.”
Kai huffed a laugh, though it wasn’t funny. “Isn’t it?”
Ziede bit her lip and he could see she knew he was right. “You’re taking all the fun out of killing a Hierarch’s High Expositor and stealing his power, Kai.”
― Martha Wells, Witch King

“Kai.” Ziede reached up to rub her face, apparently remembered her already ruined makeup, and planted her hands on her hips instead. “Could you manage not to find any more unique ways to destroy yourself until after we find this Hierarch? I don’t really care to die alone.” “Well, I’ll try.” It wasn’t like Kai could make any promises right now.”
― Martha Wells, Witch King

“I don’t need rest, I’m fueled by spite.”
― Martha Wells, Witch King

“You forgot what I am.'
Ramad huffed a breath that was almost a laugh. 'An immortal demon prince.'
'No,' Kai said pointedly. 'Bashasa's immortal demon prince.”
― Martha Wells, Witch King