Luna is banished to the moon, but she still struggles. And Celestia is steadily getting worse and worse, with no sister to comfort her. Note: This is the sequel to Darkness and Light, so if you haven't already, read that first.
The time has come. Equestria will fall at the hand of the nightmares, unless somepony stops them. But with the Elements out of sight, how will they do it?
Crescent wants to deal with her own nightmares and decides to cast a spell to send her back to Equestria, but Mathews won't let her. Stuck with a new body and old one, the two meet creatures never before seen by pony-kind in millenia.
Nightmare Moon may believe she has secured a small victory with her influence over ponies' dreams, but Celestia knows better...and so do the Nyx...and so does something in the moonlight. For 1000 years, Nightmare Moon waits...and 'dreams.'
Luna, with the reluctant help of Nightmare Moon, sets out to remedy her past mistakes and return the sun to Equestria. Meanwhile, Queen Chrysalis tries desperately to save her species.
Where does evil lie? In the heart? The mind? Or the soul? The result is the same. Such darkness is all consuming. Why not see for yourself, of what lies in Luna's mind.
Don't tell me you never thought it odd, that whether she was a parasite, a fractured personality, or a corrupted version of Luna, Nightmare would stick around when someone was holding her kryptonite?
Nyx and Shining Armor bond over their similar cutie marks and similar special talents. Meanwhile the birth of Shining and Cadence's son binds their family closer together in the midst of Hearth's Warming Eve.
While exploring the ruins of the Castle of the Two Sisters, Twilight finds something dark and not of this world. Some things don't know when to stay dead.
What if, in an alternate reality, Nightmare Moon was her own person, with hopes and dreams... and nightmares? A thousand years after her first rebellion, Kali Nyx has returned. Her plan will not go wrong this time... not with Luna on her side.
A thousand years ago, Princess Celestia banished her sister to the moon, that much we know. What wasn’t known, and what Celestia kept secret was that before her banishment, Luna had given birth to a foal; Twilight Andromeda Sparkle.