Luster Dawn has just been made Princess Twilight's Sparkle's student. The weight and stress of this responsibility weighs down heavy on the young filly. Fortunately, her mother is there to help her shoulder it.
With the defeat of Chrysalis and her allies, peace was finally achieved amongst many creatures. All creatures were given the choice of happiness, except for one creature that was stolen of her mother.
Long ago, in the dead of night, Luster Dawn saw a dark figure in Canterlot Castle's throne room. Longer still before that, Princess Twilight Sparkle and her friends defeated one of Equestria's greatest enemies in that same room.
Praetor Rainbow Dash is called to investigate a mysterious magical spike off the coast. At the same time, somewhere completely different, Luster Dawn miscasts a high-level spell.
Princess Celestia has retired, but that doesn't mean her little ponies have stopped needing her. She puts her skills to good use in her new business, but her new clients are tough customers. Have Celestia's matchmaking abilities met their match?
Life after ruling for Celestia is boring, almost too boring. However, on one of her strolls, she comes across a lost runaway filly. It quickly becomes clear that there is more to the filly than what meets the eye.
Luster Dawn has been dispatched to follow in Twilight's hoof tracks to her old hometown of Ponyville. And, like Twilight did with Celestia, she has homework. Consistent friendship updates are expected, although they may not always come on time.
Last semester, Luster Dawn stopped a cabal of the rich and powerful from overthrowing Princess Twilight. This year, Princess Twilight is the one keeping secrets. What truth is Equestria's royalty hiding, and what dangers does it bring?