Dipper and the Forces of Demonhood

Story requested by: Mademoiselle-Star2018

Summary- When William Cipher, a Demonic Prince receives his abilities he soon proves to be too much for his Kingdom to handle. His chaotic antics force his parents to send him away to live with an old ally on Earth. Upon his arrival he meets twins Mabel & Dipper Pines. But can these seemingly normal kids and their family teach him control? And what secrets will they discover along the way?

Disclaimers: I do not own Gravity Falls

Author's Notes: So as previously stated this Story Arc was requested by Mademoiselle-Star! And it's exactly as it sounds. We've taken the characters of Gravity Falls and thrown them into a Star Vs the Forces of Evil plot. Does that mean the same things will happen that we saw with Star and Marco?

Uh no what's the fun in that?

In this series we plan to explore a lot of plot lines that were hinted at in Star Vs the Forces of Evil but were never addressed. Like the evil Marco story line, Toffee's true plans to destroy magic. As well as some bombshells that were only revealed in the Book of spells which was released earlier this year.

So buckle up my faithful readers as I take you on yet another journey into the world of Gravity Falls with our beloved characters where I will show you that nothing is what is seems. No, once this story is complete you will never look at these characters the same way ever again.

(In a Dark Dimension)

A dark mid-evil looking castle loomed in the distance.

Thunder rolled while lightning flashed across the blood-stained sky as a young demon prince with light tan skin and yellow triangle marks on his cheeks rode across a monstrous landscape on his trusty demonic steed. The beast, a demon hound, with large fangs and midnight black fur was no mere pup. In fact, it was ten times bigger than the size of its rider. Not that the golden hair boy seemed to notice or care.

"Far, far away in a terrifying dimension called the Nightmare Realm" The teen narrated as he dodged reaching arms and green hands with long sharp claws. The land around him was literally alive and hoping to score an easy snack. The prince, however, seems unphased by all this, in fact the nearing danger seems to only add to his already growing excitement. "Lived a prince named William Cipher but my friends call me Bill."

"Uh boss are you monologuing again?" a teen to his right asked. He was also riding a beast, this one a large two headed dragon. The boy had pointed ears, and red fiery hair that was styled in a crew cut. His name was Hectogon, but Bill was never one for names. No, in fact he often gave everyone a new and "better name" that he would continue to call them by no matter how much they disputed against it. Conquencidentally, people he barely cared about don't get new names which often made them cry. A fact that Bill find rather enjoyable to say the least.

"You're ruining my intro Hector!" Bill warned. "When I'm a legend this is going to be the beginning of my story." The prince explained.

"And to think in just 10 short minutes you'll be leaving us in the dust." Another teen with a large Keyhole in his chest said. He was also riding a demon hound, but not with much grace as the prince.

Bill displayed a wicked smile, now he was never one to brag about his inheritance, but he knew his friend Keyhole, was right. Most Demons were lucky if they could perform even the lowest level of magic. Bill, however, didn't need luck. No, he had something better.

"I'm so jealous." Teeth, a demon teen with rather large chompers admitted.

"Not me!" a large baby looking creature named Paci-Fire insisted. He was so big, he didn't need a beast to ride on to keep up, no he was the beast! "Just think of all the trouble we can cause when the Boss levels up."

"Exactly!" Bill said "Once I get my powers this dump won't know what hit it." The prince boasted. He couldn't help but imagine what his abilities might be. And it was really anyone's guess, anything from shadow manipulation, to bending the natural elements. Of course, such knowledge had the kingdom shaking in fearful anticipation.

Why?

Well, Bill and his Henchmaniacs (As his friends were called) had a bad habit of causing mayhem, and destruction wherever they went. " Now Some demons have called me reckless and irresponsible even for a demon!" Bill said, continuing his narration of this momentous occasion. "Just because I fight wild beasts, host chaotic parties, and go on incredibly dangerous adventures that often gets someone killed!"

Poor 8-ball..." Amorphous Shape, a female teen with rainbow hair said sadly as she rode up beside him. "May he rest in pieces." She added as she increased the speed of her dragon cycle, a dragon that strangely had wheels.

Bill smiled. "But hey I like to have fun! And I'm about to a whole lot more because today is my 14th birthday and as a royal-born demon at the stroke of midnight my powers will finally be unleashed! Hahahahahahahahahahahaha!" He laughed maniacally. His Henchmaniacs soon joined in as they rode closer still to the dark castle hanging over them.

Within that castle, looking rather nervous a rather tall man with fair skin had short quaff blue hair and blue triangles on his cheeks. He taps his foot impatiently. His golden eyes reflecting his mood perfectly. "Of all the days he could be late." He whispered to the female beside him.

"Hannibal, he's not late yet." The woman, his wife, Queen Luisa insisted. She had long curly blonde hair, hazel eyes, tan skin with freckles and Pink full lips. She gestured to the clock, which showed two minutes till twelve.

"Well he's cutting it rather close." Hannibal whispered back, before taking in her beautiful ball-gown that's sparkly red with gold linings. She also wear a black crown with a pearl necklace and matching earrings. "You look lovely dear." He complemented.

Luisa smiled, she loved being complemented. "You too dear." She assured him.

Hannibal looked down at his own attire He wear a white jacket with a blue undershirt, gold shoulder pads, black pants and dress shoes. "Do I?" he asked. "because I feel like a nervous wreck." He admitted.

Luisa gave him a sympathetic look, their son, William always saw his father as strict, and uptight. She however, understood that Hannibal while he was firm when it came to politics and their son, just wanted what was best for all of them. Now a days demons were more civil and did very little to cause trouble in the multiverse. And even though Hannibal enjoyed going full demon once and a while; William and his friends had a bad habit of taking their fun a bit too far.

Luisa would often encourage him that it was a phase, one she went through herself. One she often reminded him that he went through too. Though of course, Hannibal would deny this. Not that any logic could possible still his nerves.

The king couldn't help but worry, and he wasn't the only one.

The entire kingdom had gathered to witness this moment as it was tradition, and well some looked like they were about to die from the sheer fear of it all. The crowd was full of a mixture of demons, monsters and witches as well as other creatures. Yes, the Demon Realm was full of many species, but none as powerful as the Cipher family. As the strongest pure-blooded demons they held power within their blood line that the rest of the Nightmare Realm couldn't compare to.

Now, beside the king and queen, who stood in front of their thrones before them all was a pink floating salamander looking creature with gills that stuck out from his face like a lion's mane. Now, this creature's name was Axolotl, and he had served the royal family for years as a guide to the heir. His job was to teach them to unlock their true potential. This task was easily accomplish thanks to his gift for identifying what kind of abilities the heir received; sometimes seconds after the abilities emerge.

'Easy...' Axolotl smiled at the thought, there was nothing easy about training demons the art of control. Mostly because control went against every natural instinct demons possessed. Still, they all learned eventually, 'Well most of them...' He added recalling a certain heir that he wouldn't dare mention; even in the safety of his own mind.

Finally, a distant rumbling can be heard and moments later Bill and his gang came crashing through the wall above his parents.

"William!" Hannibal hissed.

"You would think with how many times I've done that they'd put a window there." Bill said dusting off his button-up yellow sweater vest before straightening his black bow tie.

"Well at least your presentable." His mother added quickly as she tussled his hair a bit. She always had a bad habit of babying the boy, and as much as Bill loved his mother even he thought she could be smothering at times.

"Mom." He insisted as the seconds creeped closer to the time at hand.

"Sorry love." Luisa stepped back, "But you want to look good for this moment."

Bill turned to the clock above the thrones in intense anticipation. The seconds counted down…closer, and closer… and then…

Ding….Ding…Ding

The clock truck twelve and…nothing happens.

"Hey what gives?" Bill snapped.

King Hannibal and the crowd gave an audible sigh of relief.

"You must be a late bloomer." His mother said, trying to calm him down. "You know your uncle Tad was late." She reminded him. "Nothing to worry about."

"Nothing to worry about?" Bill screamed. "That guy's a total loser!" He screamed, his eyes growing dark as the midnight sky. "What's the point in being a prince of darkness if you can't cause a little chaos?" He asked. Not realizing that as his anger and frustration grew the room began to bend and distort around him as blue flames engulfed him.

The loyal subjects began to shake as several items in the room turn into monsters of nightmarish proportions with pointy fangs and claws.

"Dream demon." Axolotl whispers darkly.

"Oh no." Hannibal says with a look of shear terror on his face.

Bill however looks confused. "What?" He asked looking down at his hands and noticed the flames for the first time.

"Uh boss." Teeth said.

Bill looked around to see the furniture monsters as they chased the screaming peasants. And it suddenly dawns on him. "Am I doing this?" He asks.

"Yes, my prince." Axolotl says. He seems to be the only one capable of speech.

"Dream demon you say?" He asked looking down again at his still flaming blue hands. "As in the power of manipulating dreams and reality?"

"Precisely." Axolotl answered.

A wicked smile spread across the teen's face. "Boys we're back in business." He said darkly.

"Uh sweetie." Luisa spoke up shakenly. "Perhaps it's time to tone it down a bit." She insisted. "you can tone it down right?" She asked after a pause.

"Relax mother I've got this." Bill said a bit too cocky and waved his hand.

The chaos continued.

"William?" Hannibal warned.

Bill tried again and this time his efforts made things worse, causing gravity to cease around them.

"William!" His father yelled.

"Don't worry I'll get the hang of it." Bill assured them his parents. "Eventually..."

(Several Attempts Later…)

Innocent peasants are running through the streets from Bill's creations, as the palace burns. It's obvious that Bill's powers are out of control and are vastly dangerous despite his parents doing their best to help.

"Dear I think we only have one other option left." Luisa said deflecting one of Bill's monsters with an icy blast.

"I was really hoping he'd inherit your gifts." Hannibal admitted.

"oh Hannibal." Luisa laughed. "That was wishful thinking." She stated the obvious. "Still we could-."

"Send him there?" Hannibal scoffed as he used his abilities to manipulate several shadows of the monstrous beasts, rendering them motion less. "Those humans won't stand a chance."

"I think Stanford has the technology to bring Bill's power levels down until he can handle them better." Luisa urged.

"No, I refuse to send my son to that dirtball of a planet!-" He starts only to be interrupted as he gets zapped by Bill makies him fall backwards and crash into the wall behind him. "Dear call Stanford before I change my mind."

Luisa pulls out a device and dials a number. There's a pause before she says. "Ford Darling how long has it been?"

Meanwhile, just out of sight a dark pair of eyes squint in obvious glee. The Prince was out of control, and the King and queen where perfectly distracted.

"I must tell Lord Tad." The owner of the eyes said darkly. "Our time is almost at hand." He added before slipping into the darkness once more.

-To Be Continued