Atlas...

James Ironwood and the others have arrived at Atlas Academy, and Sans is sitting down in front of the other Headmasters of Union Academy, as well as the Headmaster of Atlas Academy, James Ironwood himself, as he sits down on his desk, his fingers intertwined...and Sans is looking back with his arms on the desk, with Ozpin and Glynda beside James.

Abyss sighed...as he than spoke out

"So..."

James Ironwood than spoke out to Sans.

"We need to discuss what we had just seen. Obviously...you had dealt with this before, and it is more intriguing that the ones you have fought have some of your powers, not to mention their resemblance to you in a way. Especially...with those 2."

James points at both Delta and Cross, who are standing behind Abyss, and Abyss sighed very unhappily.

"It's...it is very...complicated. But...when I tell you this..."

Abyss looks away, as if to choose his words carefully, before he spoke out.

"Be honest with me, General Ironwood. When do you plan on telling everyone about what I might say to you?"

James was a bit surprised at what Sans said, before he spoke out.

"I won't tel anyone else, Sans. I can promise that-"

"I said Honest."

Sans interrupted, making James Ironwood stop. Sans looked at Ironwood with a steely glare, before he looks down with an exasperated breath, before speaking out to him.

"Look...if you do plan on telling anyone...I don't suppose you won't hold back on what the others are gonna react to this form of information, right?"

James looks down for a bit, as if to think about what Sans said.

Cinder and Glynda looked at each other, as they are unsure of what Sans' hiding. Though there is also a small hint of anger coming from Cinder, due to remembering what Sans talked of what Glynda had done to him. Glynda looks away, knowing what she is looking at her with an expression like that, and feels a little bit guilty for the way she had treated someone who needed help.

Team RWBY, JNPR, Coco, Velvet, Shirone, Kuroka, Sonic, Tails, and Amy, they all looked at each other, as Akame than spoke out.

"He's been quiet since we went to Atlas."

Blake nodded, and spoke out.

"I know. But the way he is acting is much more different than before. I don't even know what to think of all this."

Koneko spoke out to everyone.

"Usually, being quiet's my thing."

Leone than spoke out.

"Not to mention the ones that look and sound like Sans."

She points at the 2, referring to Delta and Cross.

Sonic looks at the both of them for a bit, before he spoke out to the others.

"What happened...it seemed so...familiar to me."

Sonic spoke out, as Ruby looks at Sonic.

"What's so familiar about that situation, Sonic?"

Before Sonic was about to speak to Amy, the sound of a tapping was heard, and they looked to see Ozpin coming towards Sans.

Ozpin looks down at Sans for a little bit, before he than starts to speak to Sans for a bit.

"Mr. Gaster...I understand why you hate all of us at Union...and I will admit...when you left...it made me realize what we all had done...was inexcusable, and I know that you will not reveal your secret to us, because of what me and the rest of the people of Union had done, and I am indeed very sorry for letting that happen. But the ones that you had fought, the ones that resembled you...they are with Salem and that mad doctor that your friend had fought against, and I will have no doubt that what information they'll have...Salem will know, and it will make the situation even more worse. The best we can do, is to go on even ground with them, and know as much, if not more so, than the information that the 2 copies of yours know."

Sans looked at Ozpin, snarling down at the desk...before sighing. Even though he hates Ozpin, he has a very good point, and he hates it. Since Error and Nightmare belong to places that only Abyss knows, that perhaps it is best that he does reveal it, so that they can stand on even ground against Salem and her forces, as well as the knowledge that she will gain from them. Abyss stood up, walked next to Delta and Cross, before turning around to speak out.

"Fine. I'll talk about what to know. But first...if you want to really believe it...than I will need to show all of you something that is connected to this topic. After all...you need to see with your own eyes, so you can see that I am telling the truth to you."

He than extended his hand at the ground, and than, suddenly, portals began to open at everyone's feet, even Abyss' own feet. Before everyone realizes what is about to happen, they all fell in, and Abyss followed after all of them to show them something.

Everyone looked down to see where they are going, and all of a sudden...they closed their eyes, as a blinding white light appeared in the end of the portals that they are going through. They closed their eyes...and they see that they have stopped falling. And yet...they are not touching any ground at all. Everyone opened their eyes...and they looked to see such an amazing sight.

They were in a dimension of some sort, with an infinitely vast ocean, and sphere all around the air. The waves moved like they are oceans back on Earth. The sky looks like it is a combination of daytime and nighttime, and floating in the air...are spheres of different symbols and varied colors, as well as couple of the spheres being severely glitched.

Everyone was shocked at what they are seeing. This is something they have never thought they'd be able to see before, except for Delta and Cross. Even Ozpin, James Ironwood, and Glynda Goodwitch, who was unfazed by the Trihexa, due to being the most powerful enemy that they have ever faced, and Salem, who is their main enemy they've been fighting against, was disbelieved at what they are now seeing. Why is it that they have never seen of anything like this in their lives. They've seen the underworld, they've seen heaven, they've seen the dimensional gap, and yet, Sans know of a place that only he is able to access. As they looked in shock, a portal opened, and Abyss began to come down from the portal, as he looked around to see the spheres that's filing the dimension.

"This is the Abyss..."

Sans spoke out to the welcomed guests, as he began to float in the air, and he is not even using his scarves for flight here.

"It is the place that I use as my base...as well as the core...of the whole, entire multiverse."

This caught Ironwood's attention, as he spoke out.

"Multiverse? You mean?"

Sans looks and spoke out.

"Different versions of Remnant? Yes. It...if you want...you can call this the Underverse."

This made Ozpin and everyone shocked, but with the exception of Delta, Cross, and oddly, Sonic.

"I always thought that the Multiverse was a theory...but...wow...I can't believe that I'm actually seeing the Multiverse in front of me."

James Ironwood spoke out, as Abyss continued with his explanation to the people that desire to know of what had been really going on.

"The Multiverse is filled with different versions of Remnant, each with varying histories,  he retains the same counterparts we all have, that I have. In fact, there are even variations of the same Universe that we all live in, such as our own. As we have variations of versions of a different universe."

Sans extended his hand, and 3 orbs appeared in front of him. He than shows the first one to everyone that is present with him still.

"This is an AU where we began to follow the rule of Kill or Be Killed, making us all become ruthless and very violently people, as you see in this example of my counterpart, residing in Abyssfell, a variation of the AU, called Underfell."

He than snapped his fingers again, and goes to another sphere, so show of this one.

"This is one where everyone switched positions in their roles. In this case, Me and Papyrus switched roles of being older and younger brothers. The same also applies to Ruby and Yang.

"And these are just 4 examples."

Ruby and Yang looked at each other, as Ruby spoke out.

"Do I really act like Yang in this Remnant?"

Sans nodded.

"Yep, and Yang takes your role in this one. This called SwapAbyss, a variation of Underswap."

Yang looked a little bit unease at that information, but Ruby...she seems very interested.

Abyss than snapped his fingers one last time, and shows of himself, hearing clothing that had stars on it.

"There is also a AU where we lived in space instead of on Remnant. And this is just to make a few examples. This one is called OuterAbyss, a variation of the Alternate Universe that is called Outertale."

Sans spoke out, as he turned to the others, as a bunch of them are intrigued by the Underverse.

"That is so cool! I wonder if there is an AU made of cookies!"

Ruby spoke out, clearly extremely excited for the concept of the Multiverse, but Sans spoke back to Ruby with a grim tone.

"'Cool', isn't the word I would use. In fact, it isn't incredible, in spite of the way it looks and how interesting it is. No, it's actually a very dangerous thing."

Ruby looked confused, as Yang spoke out.

"What is so dangerous about the Multiverse, Sans?"

Sans sighed, as he than spoke out.

"First of all...as I said, there are different versions of Remnant, and different versions of us. And not all of them are safe. In fact, many of them are beyond dangerous. So much that there are some that I had to do whatever it takes to avoid even getting inside of some of the universes that's still alive."

"Like what?"

Akame spoke out, as Sans sighed.

"Like this one...which I called...AxeAbyss."

He snapped his fingers...and they are greeted with a horrifying sight of what this version of Sans looks like.

This one is a taller Sans at the height of 5'10, and he has very sharp claws and very sharp jagged teeth, looking very frightening while he grins very insanely, as Leone spoke out.

"Yikes. And I thought I had sharper teeth. But this one is simply way to much for even me, Sans."

Abyss looks at her with an expression that this AU isn't to be taken lightly.

"In this universe, which is a variation of an alternate universe called Axetale, an unknown being was able to make a rift into a realm called the void, leading to the event that is known as 'The Glitch.' When the void's mist began to leak out, it infected everyone with a sickness...that caused them to be filled with a hunger that can never be fulfilled. In this case, my counterpart of this world became so filled with hunger, that he'll attack and eat anyone that dares to try and invade his home. Not to mention severely mutating them into horrific monsters. In this case, my counterpart got infected when a friend of his punched him while infected. This in turn infected my counterpart, making him the person you're seeing right now. And when he got infected, he ended up driving to the same animalistic urges of the hunger, but he is far more intelligent in how he deals and consumes them. Although...this weakened his magic and he cannot summon a portal. So he cannot go to the multiverse, which is the lucky thing about avoiding them."

Everyone felt sick to their stomachs, as they see scenes of people eating each other. Sans sighed, as he saw his counterpart consume someone, though he cannot describe how this one looks.

Velvet hugs Coco, as she spoke out.

"This is so scary."

Coco hugs her back, and spoke out to her.

"It's okay, Velvet. No need to be afraid of them. At least they do not exist in this world."

Abyss nodded, as he than continued with explaining this AU.

"But...he also has his good sides, such is in the case of his daughter, who is named, Aliza Gaster. She is born from someone who goes by the name, Amber. She's a Fall Maiden. Another one is Eri, who my counterpart manage to protect."

He shows Aliza, the daughter, and Eri, who is a teenager.

Needless to say, Eri looked very beautiful in that AU, which some don't deny, and Ozpin spoke out to him.

"Did you ever happen to stumble upon this Universe?"

Abyss spoke out with a nod.

"Once...and it is the last thing I wanted to do. The whole air is polluted with the virus. I thought I was gonna be infected by the Hunger. Thankfully..I was able to get out of that version of Remnant as fast as I was able to, but I had a small dose of the virus infected inside of me. I had to put myself in a coma for a month, just for the Evolution Cells to get rid of that dangerous hunger!"

From the way Abyss spoke out, he sounded a little bit panicked by what he had to go through, and clearly, this is an AU that he had forbid himself to enter, and considering what they had seen when it involved that AU, it is understandable as knowing why. Delta spoke out.

"You know, Abyss also told me about this one, and when he showed me this, I actually did what I could to stay away from this one as much as possible. And unlike Abyss, I do not have Evolution Cells to protect me. So the last thing anyone would want is for an infected AU tracker like me to start infecting the Multiverse, and this could lead to one heck of a problem."

Cross spoke out.

"That's an understatement. It wold be a disaster that would take the most powerful beings to clean up. We're just lucky that we are informed of the Axetale AUs before we even decide to go jumping there."

James Ironwood spoke out.

"Gods. And I thought Salem was evil, along with All For One and Trihexa. But this...this is a whole new level of nightmares."

Sans looks at Ironwood and spoke out.

"Oh, trust me on this one, Ironwood, because this is where the second danger of the Multiverse comes into play."

He snapped his fingers, and the AUs go away, as the spheres of Error, Nightmare, and 2 other AUS that are unidentified, as they have never known which are these.

"The second danger about is...actually...you have seen the danger. You saw me fight then, back at that abandoned village me and Ironwood had fought in, when Salem and Eggman attacked all of us."

Blake looked confused, as he spoke out.

"What is so special about Error and Nightmare, besides being different versions of you?"

Sans sighed, as this is a little complicated for him to say, but explains.

"They are called Out-codes. Basically...these are counterparts that live in a pocket dimension that is connected to the Underverse. They either are born in their own pocket dimension, or they were once born from the universe, but is gone and have gained their way of obtaining godlike powers. I'm the only one that has Out-code counterparts that exists in the whole Multiverse, although...there have been some instances where there's some exceptions.

Everyone was shocked, as Sans continued.

"Nightmare is an Out-code that likes to create misery and negativity throughout the known multiverse, and at what point, had even captured me and tortured me with evil versions of myself so I can be forced to join his side, while Error Sans, who resides in a place called the Anti-Void, is a Destroyer, because he sees them as glitches, and he uses his Blue Strings to control anyone, mostly my counterparts, in order to get what he wants to get, such as destroying an AU that he is targeting. Of course...there are also Out-codes that do stop them."

"These two are known as Ink and Dream. Dream is the brother of Nightmare, embodying the positive parts of humanity, while Ink, who resides in a dimension that is called the Doodle Sphere, is a protector that fights against Error. Though...admittedly, Ink is not a nice guy himself, even though he is said to be the Protector of the AUs."

Akame than spoke out.

"What's so bad about him?"

Abyss sighed, as Cross scowled. Abyss than spoke out.

"Ink...literally has no soul, as he destroyed it because his AU is very incomplete, and could not take feeling what he felt towards it. He cannot feel any emotions, and because of that, relies on his emotion vials in order to feel something, and because of this soulless nature, makes him immune to Error's Blue Strings. He is not very behaved, but he is still the best chance against Error, at least when he uses his Emotion Vials. But without them...than...best not to be near him when he is like that.

This made everyone a bit uneasy, as they looked at each other. Can Ink even be trusted? Even James Ironwood's beginning to feel a bit uncomfortable being next to that version of Sans.

"But...there is one...that I always try my best to avoid."

Everyone looks up at Abyss, who than continued.

"There is one thing I fear...in the form of one of my Out-code counterparts. And he is the only one that can actually scare me...more than anyone else. More than even Axetale."

Sonic looks at Sans, and spoke out.

"Who is it?"

Sans turns around, and spoke out the answer.

"His name...is Error404."

He than snapped his fingers, so show who he looks like for everyone's curiosity.

Everyone than looked and saw the appearance of Error404 Sans. And needless to say...he looks a little bit scary. He is 5 inches shorter compared to Ironwood, Ozpin, and Glynda, but he is still taller than the others, by about 6'1 inch. And Error404 Sans...even though his face looks like a somewhat older version of Sans...he actually looks very scary. His eyes are similar to Salem's, which are black, but with black lines coming down his eyes, as well as having blue teeth. His fingers are blue, black, and white, while wearing a coat that reaches down to his ankles. He has a blue fluffy hood with white lines that randomly appear in different positions, and has a hood over his head. His expression...it looks calm, but is in fact very insane and very ruthless, much more then Salem.

"He is, by far, the most powerful version of me yet, and he...he is both Error's superior and partner. In fact...he is the only version of me that actually made me flee from him instead of fighting him, for the simple fact in that he is way to powerful for me to combat. Instead, I try to lure him away from whatever bad thing he is doing, and try to escape with my life, so he can be lured away from the AU that he is attacking."

He sits in a criss cross position, as he than spoke our.

"He has been after me for a while, and has been trying to gain access to the Abyss. But so far...there's no luck for Error404 in this thing. However, the thought of him entering the Abyss...very disastrous. Although...he has a very different goal...compared to Error, his student, and who you had seen me fight against."

This made everyone looked confused at Abyss, as Weiss and Mine spoke out.

"What do you mean by that?"

This made them look at each other, as Abyss spoke out.

"Error404 once belonged to an AU of his own. But since it is gone, he now desires to go to AUs, destroy them, and use pieces of their code to try and recreate it again. And he has the power to back up his goals."

Ozpin spoke out.

"What is this, Error404, capable of, Mr. Gaster?"

Abyss sighed, before he turns to look at the others, and spoke out.

"First of all...I may not have seen all of his power, since I've only fight against him a couple of times. So I'll try to list the ones that I have seen. like me and my other counterparts, he can utilize gravity magic. But he is an absolute master at it. He even sent me flying away at a distance of 500 meters. And if he wanted to, he can collapse a soul with just a clench of his fist. He can also manipulate the minds of anyone to alter, distort, and wrap their perception and morality. He has the power o use every single elemental magic that exists in the Multiverse, which made him very tricky to even get up close. He also has something called the Dark Blasters, which are basically his version of the Gaster Blasters. You get hit by them, and it'll be a death sentence to those caught in its crossfire. He is both fast and strong to an unbelievable degree, and I can barely keep up with him. He also has a whip that he can make a whip of some kind, but I have never seen the full length of it. He has a Fiberglass soul, which deflects any form of attack. And admittedly, he also as a move he calls the God Ray, where he kills anyone instantly, though only God-Level beings or beings with unordinary code. Since I count as being, unordinary..."

"You nearly got killed by Error404."

Jaune spoke out, as Abyss nodded.

"Yeah. And it is not a pleasant one. Last thing you need is for me to get killed for my troubles by getting killed by an beam fired from his finger tips."

Sheele looks at Sans seriously, as she than spoke our.

"Is it possible to kill him?"

Abyss looked up and spoke out.

"I tried that. But it ended up making things worse, as when he got close to dying, he ended up activating a transformation of sorts, causing the Multiverse to direct all of its energy to him, which forced me to really get the hell away, fast. In fact, I don't even think he can be killed at all."

He looks at everyone in the faces, seeing how horrified they seem to be, except Delta and Cross, as Abyss than spoke out loud.

"You thought that Salem was bad. And you thought Eggman was bad. But this...this is beyond worse, and the situation itself is no different. And with Error404 running around...the situation is likely about to get out of hand. And I wouldn't be surprised if Nightmare and Error told them about the Multiverse itself."

They let this sink in...and it became horrifying to them at just how bad the situation is going to be soon in the near future. Out-Code counterparts of Sans running around doing god knows what, Salem meeting them and of the Multiverse that exists everywhere around their Remnant. No one even has the words to say how chaotic things are going to get.

"You know..."

Sonic spoke out, as he walked forward, and he continued on.

"This isn't...actually the first time I dealt with the multiverse."

Sans looked surprised, as he turned to him.

"Really?"

Sonic nodded, as he spoke out.

"Back in my younger years, while I was fighting Eggman, I used to go to this area, called the Cosmic Interstate. It is basically used as a road and pathway to different zones and to different parallel universes. And admittedly...I had traveled to different Alternate Universes, though it was also thanks to a counterpart of mine."

Sans spoke out.

"Who?"

Sonic looks up, as he than spoke out.

"Zonic, the Zone Cop."

"He is a version of me from a different zone, where he watches over the multiverse in order to keep it from getting out of control. If someone were to do anything bad about it, he and his partners would step in and try to stop them from causing the Multiverse to fall into chaos."

Sans looks surprised, and spoke out.

"Well...at least I'm not alone in this, Multiverse situation."

Sonic smirked, as he spoke out.

"Yep. Because now you have another Muktiverse buddy to have, except that he lives inside of the universe that you are in, buddy!"

Abyss smirked back, as he spoke out.

"Guess you could say stuff such as that, Pal."

Sans and Sonic grinned at each other, as Ozpin than spoke out.

"Mr. Gaster..."

Sans looked at Ozpin, who than spoke out.

"I want to know...what is your role in the Multiverse?"

Sans looks away, as he spoke out.

"Well...my role...is to collect the Elemental Orbs...which are responsive for the transformation I had. They basically help unlock my real power as I gain more of them, and allow me full control of the Abyss itself. Currently, I have 3 Orbs...and I now need the last one. And the problem is that I do not know where the last one is. And this leaves with the problem of Error and Nightmare, who are still on the Remnant that we live in. How're we supposed to deal with them?"

Ozpin began to think for a little bit, before he spoke out.

"Is it possible to go to Ink and allowing me to talk to him?"

Sans glare a bit, as James spoke out.

"Ozpin! Are you crazy or something?! You heard what Sans said about what Ink is like, right? What makes you think we could gain his help?"

Ozpin nodded.

"I do know and remember what Sans has told me about the one called Ink. But if he really is against Error and Nightmare, than we will need his help. And please, bring the one called Dream to for us to combat them."

Sans looks at him and sighed, as he than spoke out.

"Fine. I'll go."

He than made a portal, and goes to where Ink's at.

Inside of the Doodle Sphere...

Ink Sans is minding his own business, as he is scribbling down into his page to for the fun of it. His Emotion Vials now in use, as he is doing his daily hobby. Than...a blue portal opened, and Ink turns to see Abyss coming out of it with a very stern and calm expression now present on his face.

"Huh? Abyss? What are you doing here?"

Ink spoke out in surprise, as Abyss took a deep breath, and spoke out.

"Ink...we need to talk, and someone's gonna be involved in it."

Ink looked curious, as he goes to him, and spoke out.

"And who would that be."

Abyss glared a bit, as he spoke.

"You'll see...

...and it is very important."