This story is a sequel to Father

Retirement affects creatures differently, and for the former Alicorn Princess of the Night it's terrible.

The boredom is never fleeting, and follows her around like a lost pet. Work is even more boring, and she thanked the stars to she was able to keep watching the dreams of her former subjects; still this leaves most of her days empty, and unfilled. This all changes when a conversation with Celestia reveals the foals she teaches are constructing a map of their lineage. Inspired to do something similar, Luna decides she'll partake in this as well.

Her progress grinds to a halt when its discovered she has a lost brother she never knew of, and even her older siblings refuse to speak of him except in whispers. Strangely enough, her own mother refuses to acknowledge this fact leaving the alicorn to wonder who he was, and where he is.