Author's Note: Now lets take a break from the evil AUs and turn to the rest of the UF AUs. This one takes place in the Relativity/Gem Kids AU, in which Steven enters the mindscape to confront Bill. But once he's in their will he be able to stand a chance alone against him?

Bill the Nightmare Guy

(a version of the Oogie Boogie song)

Steven open his eyes, the area he was in was dark, absolutely no signs of objects or people.

Steven kept looking trying to find any trace of what the kids told him. He remembered as a child.

Ah, so long ago.

His farther told him of an enemy that his mother defeated but before she…died she told his farther and which he told him about what to do incase the dream demon might return.

Steven took a deep breath, he hoped he would be strong enough.

He has to be, to protect the gems, the Pines, Connie….He will not fail.

Suddenly the whole area started to shine bright, it nearly blinded Steven he had not used his arm to shield his eyes. But as he did that he suddenly found himself strapped to a chair.

As Steven looked around as the brightness stats to fade, he finds himself now in a casino with a strange theme that made him think of that secret government group that Dipper told him about.

The Illuminations? Strange how a secret group would make kid movies.

Then a large yellow door appeared, it opened up and out came two dice with blinking eyes where the holes would be.

Before Steven had time to look back at the door he felt someone behind him, he turned his head as best as he could while strapped to see a floating yellow triangle with a single eye wearing a top hat, and two legs and arms while twirling a cane, this was the very demon he was searching for.

The one who tortured Stanford, the one who frightens his girls, the ancient enemy of Rose Quartz.

Bill Cipher.

Bill: Well, well, well. What have we here?

Quartz's kid, huh? Ooh I'm really scared!

"So you're the reason she killed herself?" Bill laughed as the chair Steven was strapped to suddenly started tightening its grip as if to make certain that Steven remains as Bill circled around him while floating.

Bill: You're jokin! You're jokin! I can't believe my eye! You're jokin me, you gotta be. This can't be the right guy!

Bill tapped Steven's gut and poked his face with his cane.

Bill: He's fat. He's ugly. I don't know which is worse! I might just split a seam now if I don't die laughing first!

The Bill with is cane spun the chair around then with his cane again, he stopped the chair and then the chair itself started to dance along with Cipher with Steven still trapped.

Bill: Now listen here my half gem chum there's trouble close at hand, you'd better pay attention now cause I'm the nightmare man.

And if you aren't shakin then there's something very wrong, cause this may be the last time you hear my little song.

Bill snapped his fingers on his left hand and a floating monster skull appeared.

Bill: Wooo-ooo.

Skull: Wooah

Bill snapped his fingers on his right hand and a corrupted gem appeared.

Bill: Wooo-ooo

Corrupted gem: Wooah

Then Bill grabbed the Skull and forced it on the monster gem making them into a horrible mishmash gem skeleton monster.

Bill and the Skull Gem: Wooo-ooo (Wooah) I'm Bill The Nightmare Guy! (He's Bill The Nightmare Guy)

Then the chair launched Steven out causing him to land hard on the floor. Steven tried to get up but was stopped by tendrils coming out of the floor, grabbing his arm and legs. Steven lift his head to see Bill crouched down looking at him.

Bill: Well if I'm feelin antsy and there's nothing much to do I might just cook a special batch Gem and Nightmare stew.

Bill snapped his fingers and suddenly the monster fusion fell into a large cauldron and a spoon made up of human skin appeared and starting to stirring it.

Bill: And don't you know the one thing that will?

Bill then pressed his cane on Steven's forehead hard, Steven flinched as the cane started to press harder as if Cipher was trying to run it threw his head.

Bill: A roly-poly Steven guy to add a little spice.

Then shadow silhouettes of monsters that Steven had past nightmares about in his child hood as well as more demonic versions of Gem monsters he and the Gems have defeated.

The Monsters: Wooah

Bill: Woooah

The Monsters: Wooah

Bill: Oooh!

Bill and The Monsters: (Wooah,) Yeah! I'm Bill The Nightmare Guy (He's Bill The Nightmare Guy)

Steven tried to break his bonds, as he tried he looked at the demon and he looked back at him.

Steven: Release me now! Or you will face the dire consequences! I do not wish to end you so please come to your senses.

Then Steven found himself lifted up and his body started moving about on its own. Steven spotted string attached to his limbs and saw Bill above him moving him like a puppet.

Bill: Ha! You're jokin, you're jokin I can't believe my ears!

Bill sang holding up a severed ear.

Bill: Would someone shut this freak up I'm drownin in my tears!

Bill then dropped the strings and Steven fell down hard on the ground, he slowly got up, feeling the bruises from this dream world.

Bill: It's funny I'm laughing! You really are too much. And now, with your permission I'm going to do my stuff.

Steven looked around but Bill was nowhere to be found.

"What are you going to do?" Steven asked.

Bill then appeared before him, this time his color was red, and Bill spoke with a demonic voice.

"I'M GONNA DO THE BEST I CAN!"

Bill then grew to giant sized, Steven got out his Shield just as Bill slammed his arm down.

Steven tried to move but another arm came and slapped him across the floor. Steven got back up only for Bill to kick him towards the wall again and again.

Steven then tossed his shield at Cipher's eye, but Bill guessed that and fired a beam sending it right back at Steven.

Steven quickly dodged his own weapon and tired to find cover but a wall rising up form the ground stopped him.

He tried turning back only to face another wall, he looked left and right only to see two other walls.

Steven realized he was trapped and walls turned into a birdcage with Giant Bill holding it one hand and in his other hand a regular sized Bill was singing on a microphone.

Bill: Woooooah! The sounds of rollin dice to me is music in the air , cause I'm a gambling, Cipher man although I don't play fair, it's much more fun I must confess.

With lives on the line, not mine of course, but yours old boy now that'd be just fine.

Steven: Release me fast or you will have to answer for your heinous acts!

The bottom of the cage suddenly dropped causing Steven to fall. He tried to use his levitation powers but realized that he could not. He soon found Bill falling with him.

Bill: Oh brother, your something you put me in a spin!

You're hardly comprehending, the position that you're in.

Steven then landed softly on a spider web colored yellow while Bill was floating above him with both hands resting on top of his cane. Then the webs covered Steven's hands and legs and strands forced Steven to look up at Bill.

Bill: It's hopeless, you're finished! You haven't got a prayer, cause I'm Bill the Nightmare guy and you. Ain't going. Nowhere.

As Steven was force to listen to the mad laughter of this demon, Steven could only wait for the right moment where Cipher will let his guard down and Steven will have no choice but to kill the demon here.

If he can.

The End.

Author's Note, Well I tired my best here with this, I just hope it fits with Bill's character…come to think of it, is the Bill Cipher of Relativity/Gem Kids AU the same as the UF Bill?