The True Dark Daughter of the Crystal Empire

by Silver Shadows

First published

Rainbow Dash knew from the start that she was the daughter of King Sombra. When they were in the Crystal Empire the first time, Rainbow had used shadow magic, powered by her strong wings, and moved around to inform Applejack about the Crystal Heart. Now, Twilight found out a few traces of dark magic Rainbow had left behind the first time. She immediately informed all the princesses and the mane 6 are in the Crystal Empire, hunting, unknowingly, for one of their own.

This is after Secrets and Pies but before Shadow Play.