So heres my second chapter...hope you enjoy it!

Disclaimer: Sadly, I own no rights to My Little Pony

Finally, the big day arrived. The entire population of Ponyville was in the square awaiting the arrival of Princess Celestia and Princess Luna.

Twilight Sparkle, Rainbow Dash, Applejack, Rarity, Fluttershy, and Pinkie Pie were making sure everything was perfect. Finally, when the moon started to rise (it was a night party) the Mayor announced the celebration. "Welcome all ponies, to the Lunar Celebration! I'm happy to announce the one-year anniversary of Princess Luna's return to Equestria! And to help us celebrate...may I introduce...Princess Celestia!" The entire crowd of ponies cheered as the princess walked out onto the balcony of the Mayors building. Princess Celestia acknowledged the crowds cheers and said "Thank you, Thank you. But tonight's not about me. It's about my sister...Princess Luna. It's been wonderful to have her back after these many years and I'm so excited to celebrate her return with all of you. Now let me introduce...my beloved sister Princess Luna!" Princess Luna walked out next to her sister as Ponyville cheered once more. "Thank you Ponies of Ponyville." Princess Luna said. "I'm so glad to be here tonight! I enjoy seeing so many new faces. Now let the celebration begin!"

Pinkie Pie started up a cheerful song and every pony danced. For many hours the ponies danced, ate, and chatted with each other and the Princesses. When the full moon had almost reached the highest point in the sky...the princesses came over to the six ponies. Princess Luna began to speak to them. "I hear you six are the ones who scheduled and made this whole party possible. Thank you so much...I'm having so much fun!" " Ah... it was no problem," AppleJack said. "Yeah...we had fun doing it! Rainbow Dash added. "And look how much fun everyone's having!" Pinkie Pie said. "Well I'm glad everyone's enjoying themselves." Princess Luna said. "I just hope nothing goes wrong and ruins all your hard work." Then the princesses left to go talk to other ponies.

When the moon finally reached its highest point...the moons light magically casted itself on Princess Luna. The ponies near her stepped back in alarm has a dark cloud began to engulf her. Princess Luna began to panic and asked what was going on. Princess Celestia tried to help her sister, but to no avail. The cloud acted as a barrier and no one could penetrate it. Finally, the cloud completely covered the Princess and no one cloud see what was happening. Then suddenly, the cloud disappeared and instead of Princess Luna, there stood a tall regal looking pony with black skin and a blue starry mane.

The crowd gasped and Twilight Sparkle whispered in a frightened tone "Nightmare Moon".

Hope you enjoyed this new addition to my story! I know you know how much authors enjoy getting reviews so feel free to! Also, if you have any ideas for this story you can PM me and I might use your idea and give you credit!