Twilight changes Star Swirl's time spell to travel back to the past once more. She ends up in the Pre-Equestrian era and unwittingly saves two fillies in the process. Little did she know what teaching them magic can do for the fate of Equestria.
After being trapped in the past by politics and new responsibilities, Twilight finds herself as the adopted mother of Luna and Celestia. This story is about those 40 years she took care of them. Sequel to My Faithful Student by me and FadFreaky
Since their birth, the Great Dragon Spike told tales about his brave mother, Twilight Sparkle, stolen from the young dragon by a tragic time spell accident 160 years ago. But now she's back! Her hive of changeling grandkids can't wait to meet her!
The children of the Elements of Harmony---and then some---manage to travel back in time, to the Mane Six's dismay. What's more, the children don't have a way back. So until the kin find a way back, it's family bonding time.