" She said, 'Harrow, I can't keep my promise, because the entire point of me is you. You get that, right? That's what cavaliers sign up for. There is no me without you. One flesh, one end.'
A shade of exhausted suspicion flickered over her necromancer's face. 'Nav,' she said, 'what are you doing?'
'The cruellest thing anyone has ever done to you in your whole life, believe me,' said Gideon. 'You'll know what to do, and if you don't do it, what I'm about to do will be no use to anyone.'
Gideon turned and squinted, gauged the angle. She judged the distance. It would have been the worst thing in the world to look back, so she didn't. "

― Tamsyn Muir , Gideon the Ninth (The Locked Tomb, #1)