Here's a quick peek at the chapter:
This is it.
Cold, dull resignation fell like a stone into the churning pool of Frisk’s thoughts, sending waves of emotion rippling in all directions and crashing into each other.
She isn’t going to stop this time, is she? She isn’t like those other monsters who attacked me for a stupid, petty reason. She has a really good reason to want to kill me.
And she’ll keep on trying until one of us is dead.
Should I kill her?