Nadja

“She had become more, had become something that did not need air to breathe, something that did not understand hate or love or fear or grief.

It had scared her more than anything else. That utter lack of feeling. How good it had felt to be so removed.
...
She had been aware, yes. Had killed the kelpie because she wished it dead. But all the weight, the echoing thoughts, the hatred and guilt that sliced her like knives- they had vanished.

And it had been so seductive, so freeing and lovely, that she'd known the Mask had to be destroyed. If only to save herself from it.
...
Everyone else would be safe from its temptation and power- except for her. The one who most needed to be barred from it.”
― Sarah J. Maas, A ​Court of Silver Flames