An Error in the Stars || Undertale AUs - Rewrite [Up For Adoption]

Part Three - Dream

The Dreamscape (Stretch's Dream)
Stretch knew he was dreaming. He could remember jumping into the rift-portal with Error and Blue, so he was probably with them wherever they were in the real world. Perhaps whatever was on the other side, or maybe even the portal itself, caused him to pass out.

He could see Dream attempting to hide behind a tree in a misty forest which seemed oddly familiar. Then he realized that Dream wasn't alone. An eerie tentacled sans dripping with black slime was standing in the shadows behind him. Stretch guessed that was probably Dream's twin, Nightmare, who Error had told him about on their walk through the Void. Ink had probably sent Dream to interrogate him or Blue, so he knew that he probably couldn't trust Dream, but Nightmare... Nightmare was a wild card.

"Hey! Dream! Nightmare! Come on out and we can talk like civilized people!" Stretch yelled, annoyed with them hiding in the misty shadows of the trees.

They slipped out of the forest, and as they came closer to him, Nightmare's slime receded back into himself, and he was shown to be a sans nearly identical to Dream, but with a darker color scheme and a moon symbol on his crown, while Dream merely seemed to look a bit more regal.

"So. Are you two here to interrogate me for Ink?"

"No, actually. We're here on our own behalf, because we need to talk with you," Dream said.

"We need to talk to you about Error and the Balance," Nightmare said.

"Oh. Error told me the basics about the balance- there's a limited amount of space in the Multiverse and he has to destroy or else many AUs might be lost to the Void," Stretch said.

"He gave you a good baseline, but there's a lot more about the Multiverse you need to know," said Dream. "That's why we're here- to give you the ultimate Multiverse crash course."

"Plus, I want to tell you something," Nightmare said.

"If you hurt Error, I will kill you, slowly and painfully...Take care of him like you do Blue, he needs loving, kind friends to help him recover from being the destroyer for so long. He was alone for a long time in the Anti-Void, not knowing how to leave, and he still has nightmares about it. I don't give him those either- he has enough problems without me giving him more."

"Nighty, we're not here to threaten him, we're here to give him a Multiverse crash course!"

"Oh, yeah. Sorry Dream."

"It's fine Nighty. I know you're worried about Error."

"Yeah. I really am worried about him, but we do need to start. We have limited time, after all."

"Okay- So, Stretch, you know of the basics of the Multiverse. We're about to give you an AU crash course, so you know about all the different AUs, and about all of the Outcodes."

"What are Outcodes?"

"Outcodes are people who don't have a link to an AU- Nighty and I, Ink, Fresh, Geno, and Error are all Outcodes. There are others, but those are the really important ones," said Dream.

"Hey, what about Cross!" Nightmare added.

"Yes, and Cross! Now on to the AUs. The main AUs in our Multiverse are the originals, and those are what we'll be covering. I won't go into detail for all of the Swaps and Fells, they're there and that's all that really matters."

"Your AU was part of the first AUs created, along with Underfell, after the original Undertale core of this Multiverse. Some of the other AUs that we know of are Outertale, Outerswap, and Outerfell, and Dancetale also has the same kind of swap and fell variants. There were also several lone AUs: Dreamtale, Flowerfell, Lusttale, Reapertale, Songtale, Dusttale, Swapfell, and Fellswap."