Before season 4

Twilights P.O.V

"The imposter, who was she?" Chrysalis isn't that powerful, she can't take my horn and wings away like she did. The fact that I'm exactly were I started last time proves it isn't Chrysalis It's not her, so who? It might be her, I am in the crystal caves under Canterlot again, but it took magic last time as well as Cadence's wings.

Twilight was right it wasn't Chrysalis it was something new, something horrible, something life threatening. It was a Mutata mortem and not just any Mutata mortem the queen, Clamores