Tomorrow, Cadance will turn six hundred and forty eight. Luna decides to visit her ahead of time, in her dreams. One thing is for certain: it will be an unforgettable night.
The night that Cadance discovered the ghost of King Sombra lurking in the Crystal Palace should have been the worst of her life. Her greatest enemy is now lingering in her own home... and she knows that she's going to get to the bottom of this.
Princess Luna disappears from Equestria with hopes of saving the world and is accompanied by the enigmatic Sombra. Meanwhile, Celestia tries to bury secrets as immortal as she is and Cadance must choose her loyalties carefully...
Sombra is by no means an easy opponent. He is a manipulative wild card who has cheated death twice, and seeks to do so one more time. But, how many ponies can cheat death forever?
Ant Mill is a college student, stuck in a dead-end internship she took just to fulfill her requirements. All she does is wish she was somewhere else, but when she has a chance encounter with the Princess of Friendship herself, all that changes.
Luna is a mischievous filly loosely raised by her sister in a vast world that doubles as the home she barely remembers. Neptune is a humorless king who refuses to leave his home, both of them share a distant past although their paths have split.
"When I read their letters... I think about how temporary everything really is." A lonely princess pores over her studies in a frigid castle, desiring nothing more than the warmth of an old friend.