I had this idea when I saw an interview that China Anne McClain did where she said Celia reminded her of Uma. It started to grow when I noticed Uma called for Celia and Celia had ran to Uma for comfort instead of Mal and Evie when the planks started to cover the house. In fact, Celia seemed to cling to Uma when Evie wasn't hanging over her like a den mother.

I already have a story where Uma's half-sister is Freddie Facilier, but Freddie isn't technically cannon in the movies. Why not make a story where Uma has a sister that actually appears in the movies?

This is Descendants 3 if Uma and Celia were sisters.

Enjoy Facilier Sisters.

Celia couldn't believe how chaotic her day has been. It was only her third day in Auradon, yet so much has already happened to her.

That morning she and Dizzy were digging into Jane's delicious birthday cake just an hour before the birthday party. Less than twenty minutes later Audrey—the daughter of Aurora and Philip—appeared at the starter castle with Maleficent's scepter and the queen's crown, which had been stolen from the museum the day prior. The newly evil Audrey turned Mal into an old hag since the princess believed Mal stole her chance to be queen.

After Audrey made her escape, Mal revealed that the only way to break the curse of the scepter was by using Hades's ember. Since she was the only one that knew the location of Hades's hideout, the Core Four forced Celia to join them on their venture to the Isle of the Lost.

Once the five arrived at their old home, the curse on Mal was temporarily lifted due to the magical barrier on the island. Until they get the ember, the curse would only be lifted while they were on the Isle of the Lost.

Celia was leading the group down a dark run-down lane when she had a sudden realization that it actually felt good to be home. The only thing that would make it better was seeing her father and possibly running into her sister, but nobody has seen her in months.

Celia walked past her fortune-teller table and stopped in front of a magenta-and-gray painted door with PA DERANJE stamped across it. For those new to the French Quarter, that meant Do Not Disturb. Celia smiled as she knocked six times in a rhythmic pattern, a secret code to get inside. It was answered by a second series of elaborate knocks. Celia knocked out one more secret code and the thick steel door slid open.

The five travelers pushed through a set of opaque curtains, then entered the shrouded hideaway through the open mouth of a forty-foot-tall laughing carnival mask. DR. FACILIER'S VOODOO ARCADE was spelled out above them in neon lights. Several of the letters burned out, but that only added to the atmosphere. The rowdy room was packed with villain kids of all ages. There was no arguing that Dr. Facilier's business was booming.

Celia energetically ran down the stairs, shouting once she was at the bottom, "Daddy!"

Dr. Facilier, looking rakish in a magenta crushed-velvet suit and a silk top hate with a purple plume, greeted his daughter with pure delight. "There she is!" he shouted, tossing his walking stick to a nearby customer. "My little voodoo girl!"

He rushed to meet Celia on the arcade floor, where they busted into an impressive coordinated dance. The adorably elaborate routine was how the family greeted one another. Her sister and father created the dance routine first and then taught Celia when she grew more coordinated.

With the secret salutation complete, Dr. Facilier hugged his daughter tightly. "Come here, you little rascal." His face was illuminated with the kind of joy brought on by an excellent surprise. It was clear from her giant grin that Celia was equally excited to see her dad.

Dr. Facilier glanced slyly at his celebrity guests before leaning into his daughter to whisper, "What kind of hustle you got going with the shiny people?" His eyes glinted with hidden approval.

"No hustle," Celia claimed with a mischievous smile. "I got friends on the other side."

"I hear ya." Her dad's eyebrows danced with understanding. In a much quieter and subtle tone, he questioned, "Have you seen your sister yet?"

Celia's smile faltered as she headed toward a wall near her fortune-telling nook. "Not yet," she answered depressingly. "And I can't look for her with the Core Four constantly hanging over me like an injured puppy."

Her father nodded in understanding. "You'll see her soon. She will want to see you."

Celia merely retrieved the mysterious skull-shaped key from the wall and placed it around her neck. She and her father knew that her sister was unpredictable. Growing up, Celia would sometimes see her a few days at a time, stop seeing her for a few weeks, and then suddenly appear like nothing happened. The entire time, they only hanged at Celia's home, but Celia understood. They were only half-sisters, and her sister's mother did not like her hanging out with Celia. In fact, they couldn't tell anyone that they were sisters.

"We're on a mission," she explained conspiratorially. "I'm kind of a major player. That's why I can't stay long," she bragged brashly, hoping to impress her father and distract him from the previous conversation.

It worked. Dr. Facilier gazed at his mischievous daughter with what was clearly pride. "You make sure you get your cut," he instructed sternly, though it was merely an act to cover his beaming.

"I intend too," Celia's smile grew at her strategic scheme, "because they are going to take me to my sister."

After leaving her father's arcade, the five discovered Harry Hook, Gil, and some of their pirate friends in the midst of stealing the Core Four's motorcycle. While Jay, Evie, and Carlos chased after the perpetrators, Celia had to lead Mal to Hades's lair, where she found out the daughter of Maleficent was also the daughter of Hades!

Celia couldn't believe there was another teenager on the Isle of the Lost that had two villain parents like her sister! That must be the reason why the two had been drawn to each other as children and were best friends during their early childhood; though Mal pranked her sister so badly that their friendship ended at only ten years old.

After retrieving the ember, Celia and Mal arrived at the Bridge Plaza with Jay, Evie, and Carlos waiting on them—no bikes in their possession—so they could all safely leave the Isle. As the barrier started to close behind them, Harry and Gil jumped through the small opening, successfully leaving their home for the first time. The pirates attempted to push forward with Jay and Carlos blocking their path.

During the scuffle, the ember fell out of Mal's hand toward the ocean. Hades had warned that if the ember got wet, it would be game over. Any chances of defeating Audrey and saving Auradon would be no more.

Luckily, the dreaded splash never came.

A long, slimy turquoise tentacle emerged from the sea. It stretched to its impressive full length and skillfully snatched the ember out of the air.

Celia held her breath in relief and excitement as her sister, in her part-octopus form, rose grandly from the rough waters and gripped the powerful ember.

Celia's sister looked magnificent, wilder, and more in her element than she ever had before. She wore a turquoise sweetheart-necked bodice that perfectly framed her mother's golden shell necklace. Her tentacles swirled through the water with grace and ease. She tossed back her long turquoise hair, which was braided at the crown of her head and fell loose below her waist. Celia couldn't believe how beautiful her sister looked in her half-fish state. If only Celia had inherited some of her beauty . . .

"Drop something?" her sister teased with a wry smile. The ember sizzled, dulled, and grew weaker in her dripping grasp.

"It can't get wet!" Mal warned worriedly. "Give it back before it goes out!"

Celia's sister laughed mischievously. Celia knew that laugh meant her sister was going to toy with her 'victim' for a bit before giving them what they wanted. Well . . . usually. It could have changed in the few months they've been apart.

Apparently, Celia wasn't the only one surprised by her sister's appearance. Harry and Gil couldn't contain their eagerness at seeing their old friend as they curiously shouted in unison, "Uma?!"

"That's my name," Uma cooed, who still balanced the dying ember in her tentacle.

That's right! Celia's half-sister was none other than Uma, the daughter of Ursula. Uma is Celia's elder by five years and she served that role incredibly well. Uma always made sure Celia had everything she didn't growing up and made a point in showing up to every special event in Celia's life, even if they couldn't reveal they were siblings. The only person that knows their secret outside of their family is Harry Hook, who had helped with a surprise for the younger sister.

Uma glowed with confidence and gave her friends a coy wave, not once noticing Celia. Wrapping her tentacle tightly around the ember, Uma sank into the dark water.

"No!" Mal shrieked.

Uma's marvelous gold shell necklace brightened beneath the waving sea. Suddenly a whirling burst of water gushed upward out of the ocean's roiling surface, exploded, and rained back down on everyone who stood on the bridge. They were all drenched as they scrambled to the side railing, expecting to see a tentacled Uma rise dramatically from the sea once more. But there was no sign of her.

"Hi, boys," greeted a voice behind them.

Everyone spun around to see Uma on the Auradon side of the bridge. Celia once again held her breath at her sister in her teenage form—she just looked absolutely beautiful in any form she took. It was just unfair at this point. She wore fish scale leggings and a pair of aqua cowboy boots with gold crustacean accents. Her clothes were beaded with shells and sea glass. In her hand was the still-lit ember.

The group basically summarized the events that happened a couple hours prior. Celia still hadn't said a single word, silently hoping her sister would notice her before she accidentally let their secret out.

Uma stood straighter as she announced with the determination of an amazing and fearless leader, "Guarantee me that every single kid who wants to get off the island can."

"I can't do that," Mal countered stubbornly.

"Can't do that, huh?" Uma strolled over to the side of the bridge, threatening forcefully, "Well how 'bout now!" She dangled the still-lit ember over the bridge's railing, determined to get what she wanted.

"Deal!" Mal shouted hurriedly. With a calmer tone, she repeated, "Deal."

Uma eyed Mal skeptically, probably wandering if she should trust her. Wanting to see her old rival squirm, Uma pretended to fumble with the precious magical item.

"Uma!" Evie yelled to get her attention. "Her word is good."

Uma adverted her attention toward Evie, her eyes going slightly wide at finally seeing Celia. Celia couldn't help feeling a little happy at seeing her react in such a way. Although, Uma quickly composed herself to keep the others from getting suspicious or curious.

Please Umie, Celia mouthed as she begged her sister. For me?

Uma eyed the ember in her hand as she stepped away from the edge. "I'll still keep this for the time being." She opened her gold shell necklace and placed the ember within it, sealing it away safely. " 'Cuz if you think I trust you to save the world on your own, think again."

Uma smiled and looked toward Harry and Gil. "This is a job for pirates!" she exclaimed.

Harry and Gil rushed Uma. Together the wretched threesome hooted and roared in triumphant reunion while the Core Four shared a look of worry, some silently fuming at having to work with them.

During the commotion, Uma winked at Celia knowingly, giving the younger sister some joy that they would be together again.

But the day has only started.

What do you think? Please be sure to leave a review so I know if I should continue!