A lone changeling finds a new place to belong.

(Finally starting this again with a new take on the old idea. I just hope it turns out well)

Princess Luna did a lot of things as Nightmare Moon, but one in particular still haunts her to this day. The one pony she feels she betrayed more than any other disappeared without a trace. She will never forgive herself until she is found.

Based off an oc created by lavawolf. (used with his permission of course)