Abyss is flying in the air, as he continues to help as best as possible. Needless to say, it is not doing well. He made up his mind, he is going to help Ink with the situation that he has right now. And that is to help Ink with Error, who he is fighting against. And needless to say, Error, at his current level of power, he is no joke.

"Rest, Ink. I got this. You need to recover while you can. Than you can get back in your fight against Error."

Abyss spoke out, with Ink on the ground, but is beginning to stand up, while using the Paintbrush he has as a support of some kind. He than stares up at Error, who than spoke out.

"Than-Than-Than I guess-uess it is your-your-our-your turn to die by my hands, Abyss."

Error grabbed the blue strings from his eyes, as Ink spoke out.

"A-Abyss...be careful."

Abyss looks at Ink, and spoke out.

"I will."

He than turns back to Error, and prepares to attack.

Abyss gets out his Abyss Shards and Abyss Chain, as Ink is kneeling on the ground, to injured to fight. He'll need to recover someplace else. For now, he is gonna go for the fight or his life...or so he thought, when Seraphim Sans appeared out of nowhere, and began to attack Error Sans.

"think that i am going to miss out on the fun of beating you down and dunkin' ya, error?"

Error Sans than stood up and looks at Seraphim Sans, before speaking out.

"So-So you decided-ed-ed to app-pp-pear. Than it'll be-be-be-be easier to try and contro-o-ol you to attack everyone."

Error than fired his blue strings at Seraphim Sans. But the target is the White Soul, where Sans is mainly in control of this body that he is in. But Seraphim Sans is not going to let this happen to him. He is not going to be controlled by Error.

Seraphim Sans barely got out of the way, as the strings nearly tried to wrap around Seraphim Sans' souls. This was way too close, as Error nearly tried to catch his soul. But this time...Seraphim Sans is ready to retaliate against the Destroyer of the AUs. Seraphim Sans flies into the air, before he tried to kick Error into the ground, with Error avoiding the attack.

Error was able to wrap his strings around Seraphim's arm, but Seraphim Sans than reeled Error Sans towards himself, and punched him with the power of the Soul of Bravery, which sent him flying far away.

But Seraphim Sans was not done with what he has. Error tried to blast Seraphim Sans with an Error Gaster Blaster, but Seraphim Sans was able to protect himself by using the power of the Green Soul.

"nice try."

Error than tried to bite off the upper part of Ssraphim Sans with a larger Error Gaster Blaster, but using the Perseverance Soul, Seraphim Sans was able to avoid the attack that happened.

"so close, error. now it is my turn."

Retaliating, Seraphim Sans launched...Blue Ballet Shoes at Error, who was able to avoid them.

"You-You-You missed me, Seraphim. Bett-ette-Better luck-luck-luck nex-nex-nex-nex-next time for that."

Needless to say, Error is acting more and more like a pest. Abyss than flied next to Seraphim, as both Abyss and Seraphim stared at Error, who than tries to attack, only for them to get out of the way. Abyss than fired a Gaster Abyss Blaster at Error, sending him flying away to a different section of the Land of Darkness. And now they only have a couple of minutes to think of a plan. Seraphim Sans looks down, before he snapped his head back up, and he than spoke out to Abyss Sans.

"hey, abyss. ink once told me that you once fused with him in order to evens the fight against error me. is that true, abyss?"

Abyss looked up and spoke out.

"Yeah, it is. Why?"

Seraphim Sans smiles, as he than spoke out.

"think we can do the same?"

Abyss smirked, as he nodded at Seraphim Sans.

"I bet ya we can."

Seraphim Sans grinned a little bit wider, as he than extended his hand out to Abyss.

"than let's fuse like you did with ink, so that we can dunk error."

Abyss smiled, as he held out his own hand, and spoke out.

"I would have chosen those words myself. Dunking Error is priority number 1 for now, until he is defeated. Than, Error404, defeating him is going to be priority number 1 once Error's down.

Abyss than holds his soul in the air, as he gets ready to use it on Seraphim Sans.

"Let's go."

Abyss spoke out, as Seraphim nodded, before he grabbed onto Abyss' Evolution Soul. Error looks and realizes what was about to happen.

"Stop!!"

Error than rushed at Seraphim Sans and Abyss sans, as he attempts to interrupt the fusion. But it was too late. A bright flash of light erupted, and when it died down, a new being has taken both Sans' places.

Now Seraphim!Abyss Sans...he is now finally created. And he is here with a new level of power he never had. He stood as tall as Seraphim Sans, but without the lower jaws, his right eye is turquoise with a red pupil, the scarves are rainbow colored, as well as the gem, he has a tail, his right chest has a determination soul, and the left chest had the turquoise soul. Seraphim!Abyss looks at Error Sans, and spoke out.

"Let's take it up a notch!"

Abyss than flies towards Error at an extremely fast speed. Error panicked at what he is seeing, before he than dodged the entity, and tried to attack from above. But Seraphim!Abyss sliced through the strings, which is revealed to be a scythe of sorts.

Seraphim!Abyss summoned a scythe from his left hand, and attacked with it. And needless to say, Error is having serious trouble trying to take him down. He than summoned a large knife with a king handle on his right hand, as his pupil glowed, and he than flies up as fast as he can at Error, before he charges and attacks with his scythe and knife. Error than immediately goes on the defensive as he tries to block and avoid getting hit by the sharp weapons..

Inside the mind of Seraphim!Abyss

"Hahahahahaha!! This is amazing!!"

Abyss shouted out, as the other sans, Seraphim Sans, is next to him. But he does not look like the way he is in the outside world. Instead, his race is that of a skeleton.

He is wearing a simple blue jacket and hood, black pants with a single white stripe on each side, white jacket, pink slippers, and a left eye that is flashing blue and yellow. But when he does not do that, Sans' eyes are white, as he had eye sockets, which are black, in the place of the original eyeballs that normal people like Eri has.

"heh. isn't it awesome? we get to have a 10th soul that hitches a ride with us, except it is one that can be unfused whenever he chooses to do so.

Behind Seraphim Sans are the other souls.

Bravery: "Now we're cooking!!"
Justice: "Error's crimes are beyond evil!"
Patience: "We will last long enough to subdue him."
Kindness: "Is fusing Abyss with us a good idea?"
Perseverance: "This is such an astounding thing."
Integrity: "Wow, this is so incredible, Sans."

Behind the other 6 souls are 2 souls with Determination.  These ones are Frisk, who controls the jawless blaster floating above the head...and Chara,

"Wow! This power, this is so unreal! This is unlike anything I have ever felt in my life!"

Frisk spoke out, referring to the power of Evolution that Abyss has. Even Chara could not help but marvel at the feeling of Evolution in her mind. Abyss looks at the souls behind him, as he than spoke out to Seraphim Sans, in his normal form.

"I'm honestly surprise that you are not cooped up like sardines inside of a fish can."

Seraphim Sans shrugged, as he than spoke out.

"That would be a rather...'fishy' situation."

Abyss smiled, as he than spoke out to Seraphim Sans.

"Well...it's o-fish-al. We are pun pals now!"

Both Sans laugh, but as they did...

KSHING!!!

This made both Sanses stop, as Seraphim Sans spoke out.

"what was that?"

Abyss than looks up and spoke out.

"Up there!!"

Seraphim Sans and the 8 souls look up to see what appears to be black cable, trying to tunnel their way into the mental world.

Back in the outside world...

Error404 observes the fight, as he is able to hide from King Multiverse.

"Well...isn't this an unfair fight. 10 souls against a single soul. How is that supposed to work. I need to split them up. After all...it is enough for 9 people to fight Error.

Error404 spoke out, as he than launched some unique strings at Seraphim!Abyss, in order to split Abyss and Seraphim.

Seraphim!Abyss made a large gun and fired the bullets at Error, who is doing what he can to avoid getting hit by the gun. Needless to say, Seraphim!Abyss are no joke to Error. The fusion's stronger than him.

Error launched red bones at Seraphim!Abyss Sans. But the Jawless Blaster, controlled by Frisk, moved in the way and protected Seraphim!Abyss from getting hit.

Seraphim!Abyss than fired a Gaster Blaster at Error's own Gaster Blaster, which is overpowered by Seraphim!Abyss' own. Needless to say, Error was screwed when Error got blasted badly.

But as that happened, The strings than burrowed into the body of the Godly Entity, and before it new what was about to happen, the entity split back into 2: Seraphim and Abyss Sans. Error404 than spoke out.

"Talk about an unfair fight. You both are out of this match."

Error404 spoke out, before throwing the both of them into opposite direction. Although Seraphim Sans flew far, Abyss Sans simply lands into the wall of a large rock, close to the battle. The pain made by Error404...it was too much for Abyss to handle. And before he knew it...his consciousness slipped away, as the sounds of the fight grew fainter and fainter...until all is completely silent.

Inside of Abyss Sans' mind...

Abyss' eyes were closed...as he has no idea where he is right now. But it is obvious that he is now on Remnant this time. His eyes twitched...as he can feel his arms wrapped around his legs, his legs pushed to his chest, as he is floating in the air in fetal position.

Than...he began to open his eyes...and he looked around to see that he is in a dark place with water.

"Is that...the Abyss? No...the presence here...it is way too foreboding. The Abyss feels more cautious, yet more welcoming. This does not feel the same way. This is something else."

As he said that...a voice spoke out.

"Hello, it...seems I have a new...visitor."

The voice...it sounded familiar.

"What the...who's there?"

Abyss spoke out. As the figure began to show up.

"Do not be afraid...I am here to help."

Abyss looks at the outline of a figure, the voice sounds familiar for some reason.

"Who...who are you?"

The figure stopped, as it began to reveal itself.

"You do know of me...just a different version of who you are related to. I am W.D.Gaster...an alternate version of your father."

Gaster looks at Abyss in the eyes, and Abyss liked very, very nervous . The eyes of Gaster...it is a monster version of him. Likely from the original universe. But what is he doing here? Gaster than spoke out in his usual tone again, and his tone...it sounds to be very mysterious, and yet, at the exact same time, it sound pleasant. It is very, very unnerving for Abyss to hear it.

"Hello...you must be an alternate version of my son, Sans. Should I call you, Abyss...just so that there is no confusion for either of us, as we both share the names of father and son from different universes?"

Gaster spoke out in English, and not his usual Wing Ding Font. Abyss stepped back, as he spoke out.

"Yeah, that'd be good.

But Gaster could sense the fear inside of Abyss' mind, as he than spoke out to him.

"Don't be afraid. I'm here to help."

Abyss looked very confused at Gaster, as he than spoke out.

"Help...you barely look like help at all, pal."

Gaster than chuckled a little bit in Wingdings, making Abyss a little unnerved, as he spoke out.

"Who says you need to look like help? But my offer is very genuine, Abyss."
Abyss raised an eyebrow, as he than spoke out.

"Help...why do you want to help me? Don't you have other stuff to do?"

Gaster shook his head, as he than spoke out.

"The only thing it could do...is observes events from the void. And besides..."

Gaster snapped his fingers,

The original Sans and Gaster...who are skeletons, and look very happy to have each other, as Gaster spoke out.

"My own sons are okay, and I am content to know they're still fine. But if you don't allow me to help you...than the people you care about...they'll be unable to see another day. And you...you may be a counterpart of my original son...you are still my son, regardless if you are of another universe or not. Besides...isn't it the role of a father to help his child's troubles?"
Abyss spoke out.

"And what would this offer be, Gaster."

Gaster sighed, as he than spoke out.

"You see...I have been able to observe everything, along with my other counterparts, Abyss. We have observed everything in the Void...which you are in. The void, which is connected to the whole Multiverse. But even we Gaster's, or the ones that take the role of a Gaster...even we are not safe from the grasp of Error404 himself. He has enslaved a lot of my brethren and forced them to do his work on trying to restore what had since been lost, the universe that was once his home. And he will even tear this world apart...just to restore it."

Abyss than spoke out.

"So where do I come in?"

Gaster than spoke out to Abyss.

"Isn't it obvious? Because if your power of Evolution...it makes it powerful enough for something that I can do. You see...I can bring back the people that were enslaved by Error404, and I can help you protect the people you care about and fight off against the people that are trying to conquer the world that you live in. But in order to do that...I need a body...a host. One that can sustain my power. And that is where you come in, Abyss. You power of Evolution is more than enough to take and contain my powers, which have been increased by the void, that usually changes and warps a person in a way. But because of your Soul Trait of Evolution, it has become powerful enough to contain my powers indefinitely. And it will give you the necessary power you need in order to stand some chance against Error404 himself. Perhaps maybe become stronger than the King of the Multiverse himself."

Abyss looked a bit unsure about this, as he than spoke out to Gaster Prime.

"How do I know you are telling the truth to me, Gaster?"

Gaster smiled at Abyss, as he than spoke out.

"You have telepathy, right? Can you read my mind, my memories, and see that I am telling the truth?"

Abyss looked down at the black liquid...before he closed his eyes...and using his telepathy...he entered Gaster's mind...and it turns out...he is telling the truth. So many happy memories with his sons, with the Papyrus of his world, and with the Sans of this world as well. Papyrus...he is confident and flamboyant, but is as kind and innocent as a little child. While the Sans of the original universe is lazy and apathetic, but he cares deeply for his brother. And when Gaster fell, Sans tried to grab him, as if scared of being unable to catch his father, which did happen. And Gaster...he truly did miss his sons a lot, and wishes to see them again. Abyss than opened his eyes...and spoke out.

"Wow...I never thought...that this wound be the case. You really are truthful to me. Heh."

Abyss than looks down at himself, before speaking out.

"Alright than...if you want to use my body..."

Abyss than extends both of his hands to Gaster, and has a heartwarming smile, almost looking as if he is here to give this alternate version of his father a hug, as he than spoke out to W.D.Gaster, with a very kind and gentle tone in his voice, with a welcoming presence to him.

"C'mere. You can take control of my body to protect those that I hold dear, and to save the other Gaster's that Error404 had taken."

Classic!Gaster smiled, as he took Abyss' hands, and a bright glow erupted from between both of the Gasters.

In the real world...

Abyss...his body does not move...at first...but than...his left eye...it began to twitch a little bit...as if he is trying desperately to wake up from whatever nap he is in. He hand began to flex a little bit, and his facial features...it began to scrunch up a little bit...before Abyss' left eye snapped open in a split second. His sclera turned black, but instead of the left eye turning to dark blue, which changes to turquoise, the left eye has changed into a completely different color. It is now purple. And than...a blast of light erupted form where Abyss is...and Error404 looked to see that Abyss is standing up...but is now much more taller, and he cannot see what it is that has happened to him. When the light died down...his eyes widened, as he spoke out.

"No!! It can't be!!"

Error404 shouted at the top of his lungs, in immense disbelief at what he is seeing before his eyes...as a new being has now taken the place of Abyss, and Seraphim Sans flies back to see this thing happening.

"I...AM...FREE."

Gaster spoke, as he observes and looks at the new body that he is in right now. He is taller, in fact, he is just as tall as Error404, 6'1, with a grey scarf that has a tip that is becoming lighter, similar to Abyss Papyrus' scarf, a normal jacket with a normal length that reaches behind the top part of his legs, pure black jeans with a belt keeping it in place, with the Abyss Crystal on his left shoulder instead of the chest, which it normally is at. His left eye is purple, with a line going down the left eye and another rising from the right eye, with a grey shirt. Finally, he has grey shoes, and had a sinister smirk on his face, as he stares at Error404. Needless to say, Error404 was not prepared to fight this. Gaster looks at himself, and observes the body that he is in right now, as he than spoke out.

"This body...it is now more stronger...much more stronger than I imagined. It seems the Evolution Trait of this soul has made it more than strong enough to contain the power that I had gained from the void."

Gaster than looks up, and spoke out to himself as he faces Error404.

"It is time to put this to the test."

Error404 snarled...as he than spoke out to him.

"Gaster...HOW DARE YOU REBEL AGAINST YOUR MASTER!!!"

He roared, as he fired strings at Gaster in order to tear him apart for trying to attack him. But the void had enhanced all of Gaster's physical traits, which caused him to run extremely fast, as he avoids getting hit by the strings, before he than leapt up into the air, and punches Error404 with immense force, sending him flying. Unfortunately, King Multiverse is already dealing with something that is distracting him, so Gaster has to with Error404. And besides...he gets to have a chance to use this new body against the God of the Multiverse.

As he floats in the air, he summoned a skeletal hand with a hole, and fired a red beam of energy at Error404, blasting him to the ground, and agonizing him badly. But this made Error404 immensely furious, as he than launched himself into the air, and attempted to attack Gaster. But Gaster avoided getting hit, as he than teleported away for but, before summoning another one, but this one fired rapid yellow bullets at Error404, which staggered him a little bit. Error404 than fired another set of strings at Gaster, only for Gaster to use a hand with a cyan hole, countering Error404's. The cyan strings and the blue strings that Error404 have countered and negated each other. Error404 than has his right ha d glow, as it than became covered in a blue construct of a blade. Gaster than looks at Error404 with his purple eye, before charging in at him, and Error404 barely was able to counter it with his Dark Blasters, Error404's own version of the Gaster Blasters. The Dark Blaster was able to protect Error404, and than he summoned more Dark Blasters behind him, before firing them at Gaster, who than used an orange dot, before he gets out of the way. When the orange dot was hit by the Dark Blasters, it than erupted into a violent explosion, hitting Error404, and sending him flying, damaged by the sudden attack. But the damage healed itself, and Error404 went in front of Gaster, as he 2 fingers are pointing out of his hands. A small white sphere began to appear, as Error404 than spoke out to Gaster.

"God Ray."

Error404 quickly reacted, as he than summoned a green-holed hand, in order to make an energy construct of a shield, and as soon as the God Blast erupted, Gaster is thrown back, and was bit in the back by a large rock. This hurt him a bit, but with the green hand, he was able to heal himself. Needless to say, what happened was completely unexpected. Using the purple-holed hand, Gaster than flies up to Error404, and punches him, sending him flying back. But Error404 than returns back with a vengeance, and began to try and physically attack Gaster. But unfortunately, Gaster is not here to play around, as he did whatever he could to try dodge the attacks, thanks to the purple hand. Than, he summoned a Turquoise Hand...and this one symbolizes Abyss Sans' Evolution Trait. Error404 fires the Dark Blaster at Gaster, who than summoned his red-hold hand, and using the Turquoise Hand, increased the power of the hand to counter against the Dark Blasters. Needless to say, Error404 is not happy with this.

Suddenly, other 8 hands manifested, and the turquoise once again began glowing, as the other hands glowed the same color. It made the hands stronger. And than...it fired with the others, making a multi colored blast. Error404 tried to get out of the way. But it was no use...as the blast split into many parts, and closed in on Error404, creating a powerful explosion. Gaster landed on the ground, as Error404 fell to the ground, but is still okay...with his clothes shredded a bit. Clearly, Gaster has become immensely powerful thanks to Abyss' body, which is constantly growing stronger, due to the trait of Evolution continuing to empower him, even at this very moment.

Error404 looked at Gaster with annoyance and anger present in his face, as he than spoke out to the Classic Gaster inside of Abyss Sans' transformed body.

"I'll admit...you are powerful, for using the body of one of my most annoying enemies. Not even my creation, the King of the Multiverse, can give me this much of a annoying time. But it does not matter...for you will soon be sent back to where you belong..and for you to know your place in the multiverse...Gaster."

Error404 spoke out, hoping that this would intimidate Gaster to the point that he can finally back down, admiring that he has been defeated by the Multiverse's Absolute God. But Gaster made a smile on his face, as he than spoke out.

"If you think that I am done fighting you...than you'll have to think again, Error404...because I have a trick that I have just discovered right now, and this one...it will be the one to that shall defeat you in the end. And this is the one you will never forget."

Suddenly...water from the Abyss began to fill up the deep part of the Land of Darkness that he is in, and Gaster...closed his eyes and began to sink in it. Error404 watched as this happened. And than...all of a sudden...the Land of Darkness began to shake, like an earthquake is beginning to to shatter it to pieces. Than...inside of the pool of cold, dark liquid...a silhouette began to appear, and it is large the size of a building. Red cables appeared from above, as the entity revealed itself from the ocean, and needless to say...it is extremely frightening. A claw erupted from the ocean, and nearly crushed Error404, who barely got out of the way just in time. Than, the enormous creature began to rise from the cold ocean, as it revealed its form to those around him.

The entity then rose from the large pond that is made, and with a jaw-dropping look from everyone, it is very gigantic, and to show off what it looks like to everyone that is present.

This is so...ungodly...that's simply one way to describe this form. It has 4 arms, with 2 being shorter and smaller than the other, with the clothes looking like it had been fused with its body. It has blue fur and a darker blue neck, with tubes that connects to the back part of its head, and has an exposed spine. It has Gaster's face, but with sharp teeth and a black jaw. Red cables attached itself to its back, in order to support its extremely large weight and size. Red and yellow eye appeared from the large behemoth, with a veiny-like pattern on it, with the texture of the eyes looking very similar to the grey eyes that Abyss had in his first form. Error404 was shocked at the sight that is before his very eyes, his whole form glitched much more badly, as Gaster's god form turned upwards to see Error404, the God of the Multiverse, before he than spoke out in a very deep, and very diabolically divine tone.

"Now...where do we begin?"