Author's Notes:

Spoiler in The Crystal Empire scene Twilight's looks has change because she has more power, and she is at her full potential

One year and Six months had past.

The sun was almost setting on Equestria. At the Castle of Canterlot there is the white alicorn was at the balcony of the castle. Celestia looked at the city of canterlot, she also looked at ponyvile with a smile. She saw the red, yellow, and purple crystal castle that the tree of harmony made for her student. She was smile that her student Sunset Shimmer had the potential to use the element of magic and has become an equal like her. Sunset became the princess of friendship, and recently Sunset found Star Swirl an the Pillars and defeated the pony of shadows by banishment and rescuing Stygian. The sun was almost setting and Celestia knew that her sister will be here to do her duties. She walk around the halls of the castle but the smile that she had faded way.

"Tia."

Celestia stoped and looked for who said that. "O hello, Luna."

Luna notice that her sister sound depress. "What's wrong, sister?"

Luna hoped for a response but she saw her sister cry. Then Luna came to her sister with a hug. "O Luna, I-I m-miss h-her. And there is nothing that will bring her back." Celestia then trying to clear her crying. "I want to kill Sombra, but that magic barrier it-it's just too strong."

Luna looked at her sister in the eyes. "You know that vengeance will not bring her back and it will bring the bad of you remember that dream that Starlight had when she swapped our cutie marks."

"How can I forget that." Celestia said. "But it is hard to say that thing, that Daybreaker is real. And I fight it ever time I sleep."

"You not alone sister." Luna said. "I'm here if you feel sad."

Celestia smile. "Thank you Luna."

"Now you need some rest." Luna said.

In the Crystal Empire the weather did feel natural to normal ponies but to the umbrum this was normal. A constant thunderstorm with no rain and the source came from above of the castle. Purple and green lightning cracked in the black clouds. If this lightning hits the ground it forms crystals. The ground around the empire was not of grass but of ash and snow. For the Dark Star in the empire was restoring the empire origin state.

Queen Twilight was looking at the land of the empire from the tower, the same tower she was trapped and to fine the heart. Twilight had change, she was stronger. Her mane flow with magic with purple and dark blue, it flow like Luna's mane. There was no red in the magic. Her mane had black stars in it as well, they move around her mane like they where apart of it. Her crown was with spikes that where silver crystals. Her horn was longer and sharp to the tip and somewhat cured. Her eyes looked like the one she loved but instead of red in the center, instead it was purple. She had armor like her King but much lighter look.

She looked out to the south of the empire, the broader of Equestria. It was night, and she smile with a evil grin. "Those foolish ponies, will not know what hit them." She pull a book out and was looking of one spell, that she mastered now. "Luna is not the only one with is power. She is the Guardian of Dream, and I am the Terror of Nightmares. And Luna will not know who is doing this." Suddenly her horn lit white, her eyes closed, and them Queen Twilight enter the dream realm.

She was know in the dream realm the place that only Princess Luna can go to. Twilight looked at he body, it was not dark purple lavender but black like she was in her shadow form. She looked at her face and saw green eye with no pupils. But suddenly she saw Luna in the distance, but she looked like she did not notice her.

'The spell worked' Twilight said but Luna was not aware that there is a a dark evil in this realm.

Luna disappeared in to a dream to help a pony. "Now she is gone." Twilight said. "Let see who will be my test subject."

She looked for a pony that was worried and in lots of stress, and it was easy to find on. She saw a dream world with a sun, and this pony had a lot of gilt on her. "So sun princess, lets see if you can give me what I'm looking for. If not them I will go for the element bearers. But let this be my revenge of you using me, to do your dirty work!" Twilight enter Celestia's dream and to give her a nightmare.

Celestia woke up looking around she could not believe where she was. "Here." she said. "The Crystal Empire, how." She looked at it the land that boarder equestria "The barrier its gone."

"Ready dear sister." Luna said.

"To kill the tyrant." Celestia said. "Yes."

But this was not Luna. Twilight had created a shadow puppet of Luna. It use the memories of luna in Celestia's mind. Twilight grin above and watched. Hoping this will work "Lets see if this 'dungeon of despair' works."

Celestia felt the ground shake and she fell in a dark hole, she look around there was nobody around not even Luna. She looked about the hole was covered. But she heard someone, and he was laughing.

"Hahaha, A at last we mean face to face again." He said, coming out of the shadow was King Sombra. "Princess Celestia. Hahhaha." Twilight smile as she puppet the shadow mimic of Sombra. Celestia felt anger and rage. Twilight smile like a little filly "Good Celestia, let you hatred flow." Celestia use her magic to make a blade staff, Sombra had a scythe made from the black crystal he create. There blades clash.

"What is the matter Celestia." Sombra said "Having a bad day."

Celestia eye had fire in them "Silence you cower!."

She push Sombra and close her eyes to stab Sombra. She looked, but sombra was not the pony she stabbed it was a purple lavender unicorn mare. "Why did you let me die?" Twilight said.

"No" Celestia said, she then cried. "No please, Twi..light I did.. not mean too." That was not Twilight for the real one was above. Celestia cried out. "O twilight I-I miss you."

Twilight saw Celestia's memories but not the one she was look for. "Looks like the element bearers are next."