He fell quiet. After a moment, he said, “I hope you never have to use that dagger – or any other, Yrene. Even as a mercy.” The sorrow in her eyes was enough to knock the breath from him. “Thank you,” she said softly. “For being willing to take that death upon yourself.” No one had ever said such a thing. Even Dorian. But it had been expected. Celaena – Aelin had been grateful when he’d killed Cain to save her, but she had expected him to one day make a kill.