Although it is not know to any pony else, Celestia and Luna had a sister-in-law, one that has been forgotten by time and history. But when Twilight Sparkle starts to asks questions, how will (the) Princess Celestia respond?
Follow the tale and story about the real truth behind the great and powerful yet still mysterious Star Swirl as told by (the) Princess Celestia to her student Twilight Sparkle.
It's Pinkie Pie's Parents Birthday, but they're still in the hospital, and they have one last final secret to share, and Pinkie Pie has one more last fnal promise too.