Scootaloo silently fought back tears all alone on the dock. Her friends hugged her for comfort but nothing could help a broken heart! She wished so hard Rainbow Dash to be her sister and for once, it seemed possible. But then, Diamond Tiara
came along and Rainbow seemed to love her instead. The party to give celebration of their sisterhood was off already without her.
Pip flew around the clouds, right above the party boat. Then there was a song and a lovely voice to make it. "Scootaloo?! She got her voice back?! And is on the boat?! This I gotta see!" Pip cried, flying down. He found the voice
in the dressing room but saw the wrong pony.
Diamond Tiara was putting on a pink and frilly dress and singing but with Scootaloo's voice. "What a lovely little sister I'll make, dear I'll look divine!" She then turned to the mirror and danced in front of it. "Soon I'll have
that little merfilly and the ocean will be mine!" She started laughing then Pip saw her real self, Adagio in the mirror.
"Oh no! I gotta… She gonna…" He flew off.
"Scootaloo! Scootaloo!" Pip yelled, landing next to the girl. She looked at him. "I was flying and… Well of course I was, but I saw that sea witch! But not her! Diamond Tiara! She was singing with your voice!" He cried.
Sweetie Belle looked at him with shock. "Are you positive?!" She gasped.
"Oh no! What are we to do?!" Applebloom cried.
Scootaloo remembered Adagio's words… It was the third day! She was already on her scooter and ready to ride. "Ah'll swim to the boat, try to stop it for a few seconds!" Sweetie nodded. "I'll go get Queen Luna!" She was
about to go under when Pip stopped her.
"What do I do?!"
"Um… Oh! Stall the party!" The girl cried, then dove in the water.
Meanwhile, Diamond Tiara walked up to Rainbow and kicked Tank away when he tried to stop her. "Right… Um, well, Rainbow almost died a few days ago but was rescued by what she said was a young girl. We didn't belive her, but she
proved us wrong and today we-" Pinkie stopped when many birds, lead by Pip charged at Diamond Tiara. "Yes! Go birds!" Pinkie yelled. Rainbow glared at her. "Go on." She growled, under the spell.
Scootaloo zoomed on her scooter. Almost there…, she thought.
Suddenly, Diamond Tiara was attacked by the birds! She screeched. Under the water, behind the boat, Applebloom had tied a piece of seaweed to the propeller of the boat. "Pull!" She yelled to the creatures who had sang with her, Sweetie
Belle, and Scootaloo for years. They did and the ship lurched forward, being stopped. With that lurch and the struggle with the birds, the necklace containing Scootaloo's voice broke of and shattered.
Scootaloo kicked herself from her scooter and grabbed onto the ship railing. She used her tiny wings and beat them furiously. They managed to somersault her on.
The filly rose just as her voice was returned. She sang a note and the spell on Rainbow Dash was broken.
"Scoots?" She whispered, rubbing her head.
"Rainbow." Scootaloo sighed with relief.
"I-it was you! Oh, how could I be so blind?!" Rainbow creid.
"No! Get away from her!" Adagio screeched.
The sisters hugged. "Rainbow, I wanted to tell you, I really did!" Scootaloo whispered.
"NO!" The siren yelled.
Rainbow was about to kiss her forehead when the sun set. Scootaloo grabbed her chest in surprise and found herself a mermaid again. Adagio had turned to her true form as well and grabbed the princess, covering her mouth. "You're too
late! You fools are all too late!" The siren laughed, going to the edge of the boat. "So long, sister!" She cackled at Rainbow and dove into the ocean with Scootaloo. "Scootaloo!" Rainbow yelled.
Adagio looked at the young merfilly and laughed. "Poor little princess!" She laughed, hugging the merfilly close and Scootaloo glared at her, not being able to do anything. "It's not you I'm after though-" She was interrupted.
"Adajio!" Luna bellowed.
She, Sweetie Belle, and Applebloom swam up.
"Oh, Luna, dear, how are you? I see you brought your fan girls, good for them." Adagio laughed. Scootaloo finally thrashed out of the siren's grip and saw to her mother. "Don't mock my friends like that!" She yelled.
"Shut it, girly!" The siren growled. Scootaloo gasped as Sonata and Aria grabbed her from behind.
"Release my daughter!" The Queen shouted.
"Not a chance! This little princess happened to sign a contract, she belongs to me!" The siren laughed.
"What?!" Sweetie Belle and Applebloom squeaked together.
"Didn't anypony read the fine print?! Nopony? Come on girls, I explained it in a song so even if you were held up and gagged, which, oh yeah, you two brats were, you'd still get there!" Adagio groaned.
Sweetie Belle tried to speak, but realized, she had a point.
"Now, now, Luna, shall we strike a deal? As you know, the Queen of the sea's daughter is a precious and delicate thing and-"
"Don't ever call me delicate!" Scootaloo's mouth was covered.
"I think I know that you know what I want, so, do we have a deal?"
Luna saw the scroll and sighed softly.
"NO!" The three merfillies yelled in unison. But she signed it and fell into a shriveled up brown thing. "Your highness!" Sweetie Belle whispered, swimming up to her. Adagio laughed and grabbed Luma's crown and trident.
"At last!" She cackled.
Scootaloo finally wriggled out and tried to tackle Adagio. "You monster!" She cried.
The siren flung her off and she trembled in fear as the trident glowed and was pointed to her. "Don't mess with me, you little brat! Contract or not-" Adagio was interrupted when a rock hit her. She turned to Rainbow Dash, who held
her breath under the water. "You little troll!" The siren growled. "Get her!" She demanded her sister.
"Rainbow, look out!" Scootaloo cried as Sonata and Aria swam to capture her.
"Come on!" Sweetie Belle squeaked to Applebloom when Rainbow was held back and thrashing for air. The two each tugged and pulled, slapping their tails too.
Adagio laughed at the struggling girls and aimed the trident at Rainbow and her friends. "Say goodbye to your sister!" She cackled to Scootaloo. "No!" The princess yelled, pushing the trident up and hitting Aria and Sonata.
"Oh! I'm so sorry, sisters!" Adagio cried, then glared up at the merfillies swimming Rainbow to the surface.
Scootaloo pushed Rainbow on the rowboat she had came on.
"Rainbow, you gotta get out of here!" The princess gasped.
"I'm not leaving you!" Rainbow yelled over the sea storm.
Suddenly, a huge Adagio appeared before them.
"You poor, little fool! The ocean is at my command!" She boomed. A storm raged on and a whirlpool surface. Scootaloo cried out as she was sucked in. Rainbow tried to grab her hoof, but couldn't. She leapt onto another ship that
was dragged from the bottom of the sea. She aimed.
Scootaloo was dragged to the middle of the whirlpool and Adajio pointed the trident at her, about to finish the child off. "So much for sisters!" She laughed. Then Rainbow impelled her with a ship. She screamed in horror
and lightning fell across the sky.
The trident went back to Luna and the sea finally returned to normal.
Rainbow had just awoken on the beach after falling while Scootaloo watched from her rock, sad.
"She really does love her, doesn't she?" Luna whispered.
"Yes, she sure does…" Sweetie Belle smiled.
"Then I'm going to miss her so much…" The Queen whispered, using her trident.
Scootaloo turned and saw the water around her glow. She gasped in amazement as her tail turned to pony legs. She ran to Rainbow and they hugged.
Later, at their celebration party, the two ran to the side of the boat. Scootaloo waved goodbye to her best friends who Luna helped by raising the water around them so they could group hug. "Best friends forever and always…"
Scootaloo sighed, trying to hold back her tears. Then, her mother rose and they hugged as well. "I love you, mother!" She cried. The Queen returned and Scootaloo ran to Rainbow and they waved goodbye to the creatures of the sea.
"Now we can walk, now we can run, now we can stay all day in the sun!" They all sang.
"Just you and me!" Rainbow added, winking at Scootaloo.
"And I will be!" Scootaloo harmonized.
"Part of your…. World!" They all finished together.