After her and the rest of the CMC go to fine Elisabeak in the Everfree forest after she got out during there sleepover at Fluttershy's cottage and after watching Fluttershy start to be turned to stone and finding Twilight in the similar state she runs off. After getting lost a storm kicks up and forces her to confront her memories of her lost mother.
Ok this story is a short idea that I thought of one night as I was laying in bed and it wouldn't let go so here's my new story.