Here's the purrevious part:
Marilyn, as Chaton Noir, was at the Sorbonne. She saw some water swirling around and went to investigate. When she landed in the courtyard, she was immediately assaulted by a huge water beast which was made entirely of water. She jumped aside, but not before getting a blow on her back.
Chaton Noir: Ow...*stands up* Aqua???
Black Swan: I'm not Aqua anymore! I am Black Swan!!!!
She was standing on the water beast's back, controlling it and holding the water together. She thrust her hands forward, and the beast lunges at Chaton, who nimbly dodges.
Chaton Noir tried to reason with her. Every time, she was responded to by the watery roar and painful splashes of the water beast. She realized that to get to Black Swan, she had to get rif of the beast.
She looked around, hoping to get a clue as to how to defeat the beast. Her eyes fell on a little thread of water, floating and joining from a part of the Seine river to the beast. The water was flowing from the river into the beast, powering it. She got an idea and jumped over the beast's water claw again. Then, she moved farther away.
Black Swan: Hold still, furball!!! *dramatic hand gesture*
Water Beast: GLUBB GLUBB.. GLRROOOAAR! *changes shape*
The water beast somehow turns into an enormous water dinosaur-bird monster. Chaton Noir gasped, but didn't panic. She kept leading the giant water monster away from the river. Black Swan was enraged and was following the heroine, unaware that she was edging farther and farther away from the river. Finally, in the middle of a street, Chaton Noir throws her staff at Black Swan, who was standing on the dino-bird monster's head. The staff went straight at her face, but she easily made a water wall and deflected it. However, when she made the water wall, she lost concentration over the water monster, which stood still and allowed Chaton Noir to slip past it and reach the water thread.
Black Swan: NOOOOO!!
Chaton Noir: CATACLYSM! *destroys water thread and water creature*
Black Swan: GAAAHH! *falls*
Chaton Noir: *catches her*
He staff boomerangs back to her and she tucks it away. She put a down Black Swan, who was powerless without water.
Chaton Noir: You lost. Tell me where the akuma is! Let me help!
Black Swan: NO! I have to show everyone that I am THE BEST IN WATER! I need to teach our 'coach' a lesson she'll never forget! She DESERVES it!
Chaton Noir: You can do that even without your powers! You don't have to eliminate the competition, you have to overcome it. This is just cheating! Would you ever cheat? Don't you remember the time you promised us you wouldn't cheat? You, me, Kira, Libby and Sarah. We all believed in you, we loved you like our sister! And we still do, but we need Aqua, not Black Swan.
Black Swan: Wait... Marilyn? Is that... y-you?? *gasp in shock* I... I'm so sorry!! I didn't mean to hurt you! I'm sorry!! *tears of regrets form* I'm sorry.....
Chaton Noir: Don't cry Aqua, you can still make it. Help us, please. You are stronger than Hawk Moth. Together, we all are!
Black Swan: You're right! *sniffle* I'll help!
As soon as Aqua gave a smile, a brilliant white light filled the street and Chaton Noir had to shield her eyes. Aqua floated up a little off the ground. Suddenly, from her hairpin, the akuma flew out. However, it changed its color from Black and purple to White, with different shades of blue tint on the edges of the wings. It landed on Chaton Noir's cheek, seemingly kissed her, and flew back into the hairpin.
Then, a large swirl of water shot out of the hairpin and wrapped itself around Aqua. The water completely covered her. Then, it all disappeared back into the hairpin. Aqua dropped to the ground, but she wasn't Black Swan anymore. Her feathery outfit was now light blue with dark blue tints and edges. Her hair was light lavender and her skin was pure white. She was no longer Black Swan. She became Aqua Swan.
Chaton Noir helped her up and they were both in shock.
Chaton Noir: Whoa... You okay?
Aqua: Yeah... I am. But I feel so... powerful! And I feel like helping people suddenly! Am I.... a superhero? *super excited*
Chaton Noir: I don't understand.... the akuma... it... you must have purified it with your positive feelings for us!! *smiles* Wow! You have good powers now and Hawk Moth can't control you anymore!!
Sea Swan: So... does that mean... I can help you fight Hawk Moth? *shining eyes*
Chaton Noir: The more the merrier!
Aqua Swan: Wait... if your wearing Chat Noir's ring... then what happened to him?
Chaton Noir's face fell when she heard that. She explained everything that happened and told Aqua Swan about how they lost Chat Noir. She fought the tears and managed to tell her everything without losing breath. But then, Aqua Swan cried. Anyone who knew who Chat Noir was would have certainly cried as she did. Shaken sobs and obvious grief.
Chaton Noir: Lets go. Ladybug's at the Eiffel tower. She told us to meet her there.
Aqua Swan: *nods* Okay.
Aqua Swan discovers her ability to create and manipulate water to form powerful objects and creatures. She makes a large flying water platform and usus it to travel while Chaton Noir vaults with her staff. They both disappear from the Sorbonne.
Something was watching them. Something was keenly observing them.
Something big, black, fuzzy and proud.
Something, that melted into the shadows and silently followed Chaton Noir.
Something that wanted to find Ladybug.