"Get back here Inviso-Billie! I only want to destroy you molecule by molecule!" A large man in an orange jumpsuit yelled as he tried to punch the ghost he was chasing with a pair of white and green gauntlets.

"My name isn't Inviso-Billie! It's Dani! Dani Phantom! With an I! Sheesh, when will people start listening?" Dani yelled back as her pursuer continually tried to beat her with his Ghost Gloves. Realizing getting away wasn't exactly something she'd be able to do soon, Dani went intangible as the ghost hunter's glove flew directly through her. "Haha! Missed me!" She mocked as Jack suddenly grinned widely.

"Did I?" He hit a button on the end of the gloves, forcing Dani back into corporeal form and causing her get stuck in it's grasp. "Now then, let's go have a long painful talk back at my lab!" He exclaimed excitedly as he walked cheerily down the streets of Amity Park. Dani was having none of it though as she continually struggled against the grip of the gauntlets, even though it was futile. Jack was getting fed up with the tenacity of the Phantom though, and simply decided on knocking her out, which much to the ghost hunter's surprise caused two blue rings to form around the ghost, transforming her from the white haired, green eyed specter, into a black haired, blue eyed, human girl! Jack went wide eyed at this and ran back home to strap her into an Fenton Dissecting Table (It was just a normal metal table with clamps and the word "Fenton" on it.).

Dani woke up groggily, trying to move her arms up to her eyes, which much to her horror, where trapped in some sort of green energy field shaped like shackles. Trying not to panic, she tried to go intangible, only for it to fail, she tried firing ghost rays to no effect, and yanking with her superhuman strength but only making her wrists sore in her efforts. To top it all off, her black hair was blocking her eyes.

Wait, black hair?

This won't be good.

She gasped as the man who took her here walked in with a merry air about him.

"Ahh, I see you're awake now! Good! It means I get to hop right on my experiments to see what makes the ghost girl tick" he said with a chuckle as he sat down on a stool next to her and grabbed assorted tools off of a small table next to the one she was strapped to. Jack Fenton immediately took a scalpel to the the poor girls arm, cutting a one inch sample off of it as she grunted in pain. He then took a small syringe and began to take a few vials of her blood for Maddie to study later. As he finished this, he pulled out a small green and silver device, and stabbed her with the sparking prongs at the end, causing her to writhe about in pain while yanking against her shackles. Against her will, she transformed to her ghost form as he took the scalpel back to her skin again, this time on her exposed belly as he cut a gash up the middle of it, from where her shirt ended, and her pants began was now a bloody cut that caused her to scream in pain when she heard a voice that was like music to her ears in this situation.

"Dad? What was that? You alright?" The voice of a teenage boy shouted down the stairway.

"Yes, Danny I'm fine! This ghost isn't though!" He shouted back as he went back to humming a merry tune. Dani did the only thing left she could do in the situation;

She yelled.

"Danny! Help!"

Then her world went to black.

Danny Fenton was now worried.

He knew that scream the first time he heard it, it belonged to his now stabilized clone, Dani Phantom. Of course, her yelling for him is what caused his concern. Dani was just as strong as Danny was, and could use her powers just as effectively as he could use his, the fact she was screaming for help was enough to cause him alarm. Taking a quick look around the room to make sure no one but Jazz would see him, he silently panicked when his mother was in the same room as him, looking in his direction. Without time to distract her, he decided to just run down the stairs and see what his Dad had done, then go from there. He walked through the threshold of the basement and tried not to vomit at what he saw.

Dani was strapped to a metal table with ectoplasm chains holding her down to it, rendering her powers nearly useless, and even Dani wasn't strong enough to brute force her way out of them. Jack was seeming having sadistic glee at harming the younger girl, poking and prodding at her with all sorts of different tools that Danny couldn't immediately recognize as he moved to stop him.

"Dad! Stop this now!" He said in the most intimidating voice he could muster.

"Oh son look! It's Inviso-Billie! I get to experiment with a half ghost! Wanna watch?" He said as he took a glowing green sample from Dani's torso. Danny sighed as he realized what he had to do in the situation. He put his arms in the air and two white rings formed around him, his hair went white, and his eyes turned green, his normal shirt and jeans were transformed into the signature black and white jumpsuit he wore as a ghost and he took a fighting stance as his dad stared wide eyed at him. "Well, I get to experiment with two half ghosts today! Even better!" He said excitedly as he took out the Fenton Thermos in one hand, and a small cylindrical device in the other.

"No! I don't wanna fight you! Look at what you're doing! This girl is half ghost and half girl! If you harm her anymore you'd be a murderer! Dani Phantom is a human with ghost powers! Stop this idiocy now!" Danny shouted as he dodged a laser from the device and narrowly avoided the Fenton Thermos' blue containment ray.

"That' exactly why I must experiment with her! Think of all the things I could learn if I were to rip her to pieces molecule by molecule!"

"I really didn't wanna do this, sorry Dad." With that, Danny fired a ghost ray at his old man, sending him flying into a wall and causing his scalpel to clatter across the floor and under a table. Danny grabbed his clone as quickly as he could and ran towards the ghost portal, punching in a code and a coordinate to get her to the safer ends of the Far Frozen where she'd be safe as she recovered.

The large silver portal came to life, the yellow and black blast doors slid open as a portal of green energy took their place. Danny made sure his charge was safe on his shoulder as he prepared to jump in.

Jack Fenton was recovering from the blow dealt to him by the Phantom when he saw the portal fizzle to life, he grabbed the only thing in reach at the time, the Fenton Thermos, and fired at the two.

It started closing in.

Danny jumped.

The blue energy collided with the Green portal, causing it to change colors as it tried to stabilize the portal as the two half ghosts jumped through it. It shifted between it's normal eerie green, to a brown, to black, and finally turned red as Danny crossed the threshold where the portal ended and the Ghost Zone began, but something was wrong.

Dani wasn't there.

He looked frantically around his area, and instead of the green and white glows of the Far Frozen, he was falling into a clearing, the sky was blue, and the sun was beating down on him. He tried to think of where he could be but kept coming to the same conclusion.

He wasn't in the Ghost Zone, and Dani wasn't with him.

The snow haired teen screamed in defeat as he noticed the only evidence of her being there. A long snow white strand of hair on his shoulder, and an ectoplasm stain, mixed with blood on his glove. He landed on the ground and switched back to human form as he felt his strength leave his body and collapsed to his knees, unaware of his lilac eyed spectator.

Dani was screaming.

Not in defeat, or in pain, but out of fear.

She was falling through some weird vortex that kept switching colors, green to red, to black, to brown, and back again as she tumbled helplessly through it as she fell. She couldn't summon her ghost form for some reason as she fell, and she doubted it would help her anyways, even then she'd only be strong enough to hover, float, or go intangible, those wouldn't exactly be very useful while in the middle of this thing. So she fell.

And fell.

And fell some more.

After what seemed like hours of trying not to throw up, lose consciousness, or die, the vortex finally deposited her a few hundred feet above a small wooded area. She started falling as she realized the danger she was in and finally managed to go ghost as she fell, hoping to slow her descent to a much more manageable one.

Two white rings appeared around her as she focused while descending, her black hair went white as snow, her eyes went from a piercing blue to an eerie green, her blue hoodie turned into a black and white crop top, and her red shorts turned into a pair of black and white pants that seamlessly transitioned into her boots. She went intangible as she fell, holding onto consciousness ever so slightly as she phased through trees and became corporeal just a few feet above the ground. She went down on a knee and in her last moments of awareness, turned back to normal as she collapsed into unconsciousness.

What she didn't notice was a pair of silver and lilac eyes watching her from a bush.

"Ruby! Slow down!" The older girl said as she chased her thirteen year old brunette sister through the woods of their hometown, Patch Island.

"Oh, hurry up Yang! I swear I saw it! That thunder you heard was coming from here and I saw a weird green swirl thingy! Come on!" She shouted back at her older sister as she pushed through the bushes and zipped around the trees with practiced ease. She came to a halt near the bushes that lead out to the clearing where the noise was coming from as her blonde older sister caught up with her, panting as she put her hand on Ruby's shoulder. "So, wanna look through the bushes and see what's going on?" Ruby said as she hiked her thumb in the direction of the clearing. Yang just nodded while still panting and the two moved the bush's branches aside as they watched.

They definitely weren't expecting what they saw.

The thunder roared again as a large swirling green vortex ripped open far above the trees as a red and blue speck fell out of it. They watched in awe, which turned to horror when they saw the speck get larger and realized it was a girl that was Ruby's age at most. They continued watching helplessly as she plummeted before seeing something that they swore they imagined.

The black haired girl that was falling seemed to flatten out and go into a skydiving form as she fell, two white rings appeared around her midsection as her clothes changed into a black and white crop top with a matching pair of boots and pants, her hair turned white, and she seemed to phase almost out existence as she went through the trees without even touching them. She turned back into a fully formed being as she hovered a few feet above the ground, holding her head as if she was about to faint, which if her horrific looking injuries were any indicator, she was. She hit the ground on one knee as she sighed and fell over, and with a brilliant flash of light she looked like the black haired girl that had fallen through the portal.

Ruby and Yang screamed in surprise as they ran up to her, Ruby shook her slightly, trying to get her to wake up as she laid there. Yang pushed her aside and checked her pulse, sighing in relief when she realized it was still normal. "Okay Ruby, I've got standard First Aid Training thanks to Signal, but I'm going to need your help, I'm going to cradle her head and carry her top half, you grab her legs and elevate them. She passed out from exhaustion, so we should take her home. We'll explain to Dad why there's an odd transforming girl on his couch when he gets home" she said in a serious tone as she grabbed the smaller raven haired girl's upper half, keeping her head secure against her chest, as Ruby grabbed her legs and started walking back towards their house.

"I'll hope she'll be okay..." Ruby said worriedly as the two carried the injured girl back through the woods.

"She'll be fine, she's extremely strong, I can feel it" Yang said, trying to reassure Ruby as they slowly made their way out of the forest.

Taiyang Xiao Long was the embodiment of a great Huntsman. Strong, vigilant, smart, cunning, wise, and almost impossible to surprise. That being said, the seasoned Huntsman was now thoroughly surprised at the events that transpired. He'd been sent to investigate an anomaly that had appeared in the northern reaches of the Island of Patch, where he lived and worked at the acclaimed Signal Academy. He'd been tracking the energy signatures through the woods for a while now, finally coming upon a small clearing where the anomaly was originating from when he saw one of the weirder things of his life right in front of him. A teenage boy, no older than his fifteen year old daughter, Yang, was floating down from the sky, a strange ethereal glow about him as he lowered himself down. The boy had snow white hair and glowing green eyes, and was wearing a black and white jumpsuit with a weird shaped D emblem on it.

Taiyang watched him as he descended, turning into some incorporeal form and then went back to normal form as soon as he hit the ground. He seemed to look around confused for a few moments before collapsing and losing consciousness, but as soon as his head hit the ground, two white rings appeared around him, and after a flash of light the boy was in the same position as before, but instead of his snow white hair and jumpsuit he had black hair, along with a pair of jeans and a white shirt with a red oval in the center.

Snapping back to his senses, the lilac eyed man checked Danny's pulse and aura, and almost recoiled with surprise. This boy had far more aura than even he did! He must have trained extremely hard for an impossibly long amount of time in order to have anywhere near that much! This boy had some explaining to do once he woke up. 'It must have been a hell of a trip though, his aura is almost completely drained' Taiyang thought to himself as he carried the boy bridal style towards his home, it wasn't too far, and he figured since he only had aura exhaustion, he'd be fine laying on the couch for a few hours until he woke up. That and he didn't want to carry the boy all the way back to Signal. So he hiked in the direction of his home and hummed a merry tune along the way.

Ruby and Yang walked through the doors carefully carrying the girl, making sure they didn't jostle her too much as they set her carefully on the love seat, and pulled a blanket over her shoulders as Yang checked her pulse again, this time checking her aura and being extremely surprised and confused at the same time. Ruby noticed this look and looked at her older sister with her head cocked to the side. "Is something wrong Yang? Should we be worried?" She asked with a now sad tone to her voice as Yang looked back at her and shook her head frantically.

"No no no! Nothing like that Ruby! It's just, her aura...it's locked but she's able to do what she did while she fell and she seems to have only fainted. Her pulse is normal, and the wounds are stitching themselves shut just like how your aura does when you get injured in battle, yet I can feel that it's locked. She's got a lot of the stuff too Ruby, like more than Dad even. I've never read anything about this or seen anything like it before, we'll have to ask Dad when he gets home" she said as she sat down next to the girl with an odd expression on her face. "Still, I wonder how she did those things with her aura locked..." Yang said as the two sisters sat on either side of the weird girl who had quite literally fell into their lives.

"How long do you think Dad will be Yang?" Ruby asked as her sister checked her watch.

"A couple hours tops" she replied, as she looked over at the girl on the couch, then the door burst open as a tall blonde man with lilac eyes came through it carrying a black haired boy dressed in a white shirt with red accents and blue jeans. "Or he could be here now, hey Dad!" Yang said as she hopped up and ran to help him with the boy in his arms. "Who's this?"

"Well you know how I said they sent me to the woods to look for an anomaly?" The girls nodded.

"Well, this boy came from it...what's with the girl on the couch?" Taiyang said as he finally noticed the slumbering teen.

"She fell from a big green swirly thing we saw in the forest!" Ruby exclaimed.

"Did she, this boy did the same...the two look awfully similar, think they're related?" Taiyang said to no one in particular as he laid the boy down on a couch opposite the love seat the girl was on. "Any idea why she passed out Yang?"

"Well when she fell, she was covered in all sorts of cuts and gashes, that were way to precise to be from Grimm...she had to be in some form of fight, and she did this weird transformation thing, where her eyes turned green, her clothes changed, and her hair turned white and fell through the trees somehow without touching them..." Yang said slowly, explaining the circumstances. Taiyang nodded as he looked over the girl and seemed shocked.

"Do you feel the aura coming off these two, girls?" Yang nodded and Ruby did shortly after closing her eyes and focusing on the two. "They both have more than me, but are easily your ages, yet they both seem to be locked...Yang?" The blonde girl looked over at her father. "Didn't you say she was covered in cuts and gashes when she landed?" Yang nodded. "How is possible that her aura could heal her when it's still locked, same with the boy's. It doesn't make sense they can both transform like that if their auras are locked, so it can't be their semblances..." he had an idea as he placed a hand over the boy's head. "Yang, since you have a large amount of aura, I need you to unlock the girl's, and I'll unlock the boy's since he has more. I'm sorry, but if we want them to wake up soon, we need to unlock the power of their souls completely" he said as Yang nodded and placed a hand on the girl's forehead and another on her chest. The two took a breath to focus and spoke at the same time.

"For it is in passing that we achieve immortality"

A faint orange aura came off of Yang and floated towards the girl, while a yellow one came off their father and floated to the boy.

"Through this we become a paragon of virtue and glory to rise above all."

A faint green glow started to come off of the boy, and a silver one off of the girl.

"Infinite in distance and unbound by death"

The glows from the four started to brighten, causing Ruby to cover her eyes and flare her aura involuntarily.

"I release your soul, and by my shoulder, protect thee"

The two Xiao Longs fell over and started panting at the exertion of their auras in the kick starting of the two others' aura production. They slowly pulled themselves up into a chair with Ruby's assistance. The three then gawked as the two began to stir, their hair changing from black to white and their eyes going from the piercing blue to the eerie green and their clothes changing once again. They sat up and looked at each other, then noticed the three spectators and looked mortified.

Danny was panicking, not because of Dani, she was fine, she was right across from him in the same state he was. The two had undoubtedly turned back to normal once they passed out, but when they woke up they felt stronger than normal and they immediately went ghost upon regaining consciousness. Danny hadn't failed to notice the faint green coming off of his hands, or the silver on Dani's. Before he had time to question this odd new power, he did the first thing that came to mind.

"So uhhhh you guys didn't see anything, right?" Danny asked while rubbing the back of his neck. The three nodded, confirming they had seen him go ghost. "Uhhhh we can explain..." he trailed off as Dani immediately picked up where he left off.

"It's a trick of the light!" Dani blurted out as Danny nodded in affirmation. The three didn't look convinced by it though.

"Now you two, all three of us saw the both of you change as you fell from that green portal that appeared over the forest, mind telling us where you're from?" The tall blonde man with purple eyes said. The two stuttered as they realized that they were revealed as half ghosts...and they didn't seem to care. They weren't scared, trying to rip them apart molecule by molecule, or acting hostile towards them...and they let off this power vaguely similar to his and Dani's, but nowhere near the same. Danny let out a sigh as he looked over to Dani for confirmation on her being okay with telling the truth which she nodded at, and focused on changing back to normal and began to speak.

"We're from Amity Park, we were running from my dad, a ghost hunting expert who was experimenting on Dani, my clone" the three cocked an eyebrow at that but seemingly decided it made about as much sense as the rest of what he said and let him continue. "I grabbed her and went through the Ghost Portal in the basement of our house as my father managed to do something that messed with it and we ended up here. I gotta hand it to ya, you're the first people I've not been able to trick about my powers..." he said with a nervous grin as a faint green covered his body again causing Danny to look at it with his head cocked to the side. "What is this stuff?" He seemingly asked the air.

"That's aura, it's the manifestation of your soul, you have a lot more than any other person here does, and I want you to explain why you just blatantly lied to the people who saved your lives out there about your origins. Amity Park? Ghost Portal? Ghost Hunters? We aren't dumb you know" the blonde girl said this time. Danny swore he saw her eyes turn red and the power from her increase. "Well? Explain!" She shouted at him.

"I'm not lying I swear! I'm half boy, half ghost, and I'm from a small town called Amity Park in the United States! I swear! Where are we if we aren't in America then? Europe?"

The three shook their heads.

"Australia?"

They shook them again.

"Africa?"

Three heads shook.

"Asia?"

He got a shake of the head again.

"Earth in general?"

"Nope."

"Then where are we?" He asked, seemingly exasperated at the fact he had no idea where he was.

"You're on the Island of Patch in the Kingdom of Vale, on the planet Remnant." The blonde man said again. "You want us to believe you're from another dimension or something?" He asked with an odd expression on his face.

"It appears that way to us" Dani said, still in her ghost form, cradling her head in her black and white gloved hands. "I don't think either of us know a thing you just said, at all."

"She's right, I've got no idea what you're talking about. Remnant, Vale, Patch, Kingdoms, it makes no sense to me" Danny chipped in. "So yeah, I guess we're from another dimension" he said throwing his hands in the air.

"Well, convince us then, tell us about yourself and your world" the small brunette girl finally spoke in a shy tone. Danny sighed and nodded as he began telling his tale, from the accident that gave him his powers, his first fights, how he learned new powers and about his best friends, Sam and Tucker. He teared up at that though, realizing he might never see them again. He talked for a couple of hours, talking of his different enemies, from the pathetically weak Box Ghost, to his arch enemy Vlad Masters, who was also part ghost and human like him. He then talked about his allies in the ghost world as well, from the powerful Wulf, who could rip open portals to the Ghost Zone and Earth with his claws, to the even more powerful Clockwork, the Ghost Master of Time. When he wound up his tale about his adventures, including how Dani was created, Ruby was sad, her sister was frowning, and their father looked the same he'd looked for the past few hours, pensive.

Taiyang finally sighed as he put a hand on his forehead. "I don't think you're lying, neither of you had shown any signs of it, and that portal thing did look and feel completely wrong in all ways, so I guess we have no choice but to believe you for now" he said as he looked at the two. "I think it's safe to say neither of you have anywhere to go for the night?" He asked with an eyebrow raised as both shook their heads. "Well, I guess we don't have a choice for now, you can stay here on one condition." They both looked at him with their heads cocked to the side in confusion. "You either become Hunter and Huntress, or you get jobs. Considering you both popped out of a portal that led to another dimension, I'm going to assume you can't make up a story to get a job easily, so I guess you'll both be heading to Signal with my girls here. I'll look into making some creative tales for your powers and help you two learn to control your auras a little easier, though the both of you are already showing great restraint of your power" he stated as he got up and headed towards the kitchen. "How do you manage that?"

"Well, this aura stuff isn't much different from our other powers honestly. We've learned how to control them and keep them under control until we're ready to use it, this is no different really" Danny said as he rubbed the back of his head. "Thanks for letting us stay Mr...uhhh we didn't get yours or your daughter's names sir..." he trailed off as he eyed the three of them.

"I'm Taiyang Xiao Long, and you're welcome" he said as he chuckled and headed back into the kitchen. The blonde one perked up and waved and introduced herself with a goofy grin.

"I'm Yang Xiao Long! Official Badass!" She said with extreme gusto. The brunette one moved forward hugging her cape.

"I'm Ruby Rose, Yang's sister" she said shyly as she looked at the floor. "What are your names?" The two half ghosts smiled and introduced themselves.

"I'm Danny F-" he cut himself off, remembering what his father tried to do to him and Dani, and his eyes flashed green for a split second before he continued. "Danny Phantom" he said, deciding it best to just be called by his superhero name rather than his real name.

"I'm Dani Phantom, with an I" she said with a smirk as the two looked at her weird to which she replied by pointing at Danny. "I'm his clone remember?" They conceded that point.

"So to make it easier for us to speak to the one we mean to for now, can we just call you Dan?" Yang pointed at Danny who visibly flinched and grabbed his knees. Dani's eyes widened at the name and quickly floated over and covered Yang's mouth.

"Do NOT call him that! It brings back incredibly bad memories for him" she whispered to the both of them. Danny took a few deep breaths and calmed down before speaking.

"It's fine, you had no way of knowing, just uhh call me Phantom and her Dani. It's fine"he said as he uncurled himself and went ghost again. "How long until dinner?"

"I dunno, probably about twenty minutes, why?" Ruby asked, confused.

"I was gonna go for a quick flight, wanna come with?" Danny asked as he held his spectral hand out to Ruby, who looked apprehensively at it.

"You sure it's safe?" She asked, clearly excited and wanting to do it, but also not so sure at the same time.

"It's perfectly safe, I carry Sam and Tuck all the time! Ghost powers do have their advantages you know"

"Whoa whoa whoa, you come into our house, we treat you like guests, and now you're trying to fly off with my sister? Who do you think you are?" Yang cut into the conversation.

"Yaaaaaaaaaaaaaaaang! I don't need you to protect me!" Ruby whined as Danny smirked.

"I can carry the both of you easily" Danny said with a small smile.

"Why didn't you just say so, Ghost boy? Let's go!" Yang said excitedly as she took one of Danny's hands while Ruby took the other. "Uhhhh what about the ceiling? Shouldn't we go outside..." Yang trailed off as Danny took off intangibly through the house and stopped them right above the roof.

"Ghost powers Yang, remember?" Danny said with a smirk as they took off over Patch, Danny and Dani enjoying the sights while Yang and Ruby were just enjoying the breeze in their face.

"R-right" Yang stammered out as she looked down upon her hometown, enjoying their flight more by the minute. "So Danny, you got a special girl back home?" She asked, interrupting the silence and watched Danny's ghostly face blush.

"W-what? W-w-w-what kind of question is that?" Danny stuttered out, making sure to keep his head pointed directly ahead, lest Yang see his blush.

"So do ya Danny-boy?" Yang asked waggling her eyebrows at him.

"I will drop you."

"I'll shut up now."

As the four were flying through the sky peacefully, Yang and Ruby getting more and more ecstatic as they went, a blue mist came out of Danny and Dani's mouths.

"Oh no..." the two halfas said in unison as the sisters looked at them quizzically.

"What is it Danny?" Ruby asked, noting the annoyance on their faces.

"It's a ghost..." Danny said, as he started scanning the forest below them.

A/N Well, that was a fun time. I love the idea of Danny PhantomxRWBY Crossovers, and there's a lack of them on here, I figured I might as well write one! I don't know about pairings, I was going to stick with SamxDanny implied if I don't bring her into the story, or make it happen if I do bring her in, but leave your opinions in a review or a PM if you think I should stick with Sam x Danny, and bring her and Valerie, or her and Tucker into the story.