Snoke's Interest in Rey
Weakened, he reached out toward his lightsaber, trying to draw it to him.
One downward cut, she saw. One quick, final strike, and she could kill him. The landing lights of a shuttle appeared in the distance, coming over the trees in her direction. She had to make a decision, now.
Kill him, a voice inside her head said. It was amorphous, unidentifiable, raw. Pure vengeful emotion. So easy, she told herself. So quick.
She recoiled from it. From the dark side.
According to www.movieweb.com, the audiodrama reveals this voice is Snoke himself.
This makes me only further believe she's the daughter of Skywalker given the resemblance to the Palpatine scene.