The dark alicorn seated herself on a nearby pillow, horn glowing as she used a small fraction of her power to lift a quill and a piece of paper from a desk across the room. "When Nightmare Moon... when I was banished, the history books say that Celestia took the burden of both sun and moon upon her shoulders. Those history books... gloss over certain details, however. I personally never would've known had Celestia not told me."