UnderSlumber

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**UnderSlumber** is an unreleased UnderTale AU (Alternate Universe) created by **Mandaryne** that primarily involves the function of sleep being embedded into its plot.

In this AU, majority of the Monsters were affected by the Humans on the Surface dumping a large amount of sleeping gas into the Underground. However, due to the monsters having a different structure than humans; along with their SOULs being relatively weaker than the other race, the sleeping gas that was dumped caused all of the monsters that had inhaled it to fall into a deep slumber, similar to a coma.

## General Information

Despite the gas having been split years ago; before the protagonist had fallen into the Underground, there are still remains of the gas spreading everywhere. Majority of the places in the Underground have the gas running through them. Though, since a few years have passed after the event of the spill, the concentrations of the gas have died down, meaning that inhaling the gas isn’t potent enough to make someone fall into a deep sleep.

It is, however, possible to evade the effects of the gas by simply wielding as gas mask, as it is capable of filtering out the said gas. Though, the quantity of the masks are severely scarce; with only a few people having the item.

Immune systems and age are also factors to how much the gas can affect an individual. Children are easily susceptible to falling into a deep sleep from the gas, as their immune systems aren’t as strong as that of an adult.

Many of the Monsters will have dreams, while a few will only have nightmares; these monsters are capable of waking themselves up.

### Combat

While the monsters are incapable of attacking the protagonist physically, as they are literally asleep. Their SOULs, however, seem to be connected to their mental consciousness—It’s like they’re sleep walking.

Monsters do not have control over what their SOUL has their body do, unless they are woken up by the protagonist. While asleep, their SOULs are capable of using their own magic, as if they were actually awake.

### Awakening Route

The Awakening Route is the replacement for the Pacifist Route; where all monsters are spared and are able to be brought up to the Surface. In order to complete this Route, the protagonist will have to wake up everyone from their sleep, peacefully. They are unable to attack the said monster, as it will trigger the Coma Route instead.

### Coma Route

The Coma Route is the replacement for the Genocide Route; where all monsters are murdered and the protagonist is confronted by Chara. In order to complete this Route, the protagonist will have to murder everyone in their sleep. When they reach the end of the Underground, they will meet Chara a hallucination of theirs. They will eventually drive/force the protagonist to remove their gas mask, and inhale the sleeping gas around them, causing them to be induced into a deep sleep of their own.

## Main Story

In some unknown period of time, humans from the Surface had came into an all-out war with one another. However, after the said war had ended, the humans realized that they had too much leftover sleeping gas from the war. They didn’t want to dump it into the ocean, or anywhere that could potentially harm their people, so they decided to dump it into Mt. Ebott, “a mountain with a hole that was void of any life” many had said.

Dumping the remaining sleeping gas into the mountain, they were unaware of what would come into the life of monsters. The sleeping gas, right after being poured in, began to spread like wild fire. It was everywhere, invading the homes of those living in the Underground.

Because of the weak SOULs of monsters, they were incapable of withstanding the effect of sleeping gas like normal humans would be able to. This caused the race of monsters to be induced into a state of deep sleep. However, only a few were able to be awoken from their SOULs being heavily affected from what had happened during their slumber.

## Characters

### Frisk

Frisk is the main protagonist of UnderSlumber, along with being the 8th human to have fallen into the Underground. When arriving, they are given a gas mask by Flowey in order to prevent themselves from being affected by the surrounding gas.

Frisk is a young human child with a yellow complexion, and often wears a neutral, close-eyed expression. They have short brown hair, and are usually seen wearing a blue sweater with two purple lines running vertically at the center. They have brown pants, and brown shoes.

### Flowey

Flowey is a deuteragonist of UnderSlumber, as well as being Frisk’s guide in the Underground. They continue to guide Frisk through the Ruins, before leaving them with Sans after they go through the snowy forest.

Flowey is a sentient being that has the physiology of a golden flower. Due to lacking a SOUL, they are immune to the effects of the sleeping gas that surrounds their environment. They are one of the few conscious beings in the Underground.

### Sans

Sans is a deuteragonist of UnderSlumber, but is one of the final boss monsters that Frisk will have to face if they ever do a Coma Run. In the Awakening Route, they act as a guide to Frisk through the Underground. They were initially one of the few beings left in the Underground that were still conscious.

Sans is a short skeleton monster with a blue zipped-up jacket with a gray hood, a gray sweater, black gloves, black sweatpants; with white horizontal linings running down, and gray boots. They are commonly seen wearing a gray gas mask, which prevents them from inhaling the gas around them.

While Sans may have liked sleeping before, when he was affected by the sleeping gas, he fell into a deep sleep and was occupied with hundreds of nightmares; all relating to the Genocide Routes he’s been in before. After a lot of nightmares, he was finally awoken by one that terrified him so much, that it almost cracked his SOUL. After that, he grew to be very paranoid and cautious, along with becoming an insomniac.

### Alphys

Alphys is a side character of UnderSlumber, and will often help the protagonist navigate through Hotland. She was one of the few monsters that stayed conscious after the spill of sleeping gas, and in order to stay away from the gas,

Alphys is a yellow reptilian monster, who is occasionally seen wearing a lab coat, as well as wearing a gray gas mask; like Sans. They replaced the lenses of their gas mask with similar lenses of her own glasses.

Similar to what Sans had went through, Alphys had been affected by the sleeping gas, and was induced into a long state of slumber, in which she had to endure many of the nightmares that came to her mind; her nightmares often consisted of her experience with the Amalgamates, and her guilt for them. She eventually woke up from a really bad one, and had damaged her HP far enough. She stays isolated in her lab every day.

## Trivia

* No artwork was created for this AU, this was simply an idea that came up to the author’s mind a few hours ago.
	+ Logo does not count for this one, it isn’t artwork, it’s a placeholder. (You should also look at it in dark mode too..)
* The monsters here are not in a coma, actually. They are just induced into a deep sleep, in which they are incapable of waking up from unless their SOUL is deeply affected by something; whether it be from harm, from a well-spared battle, or from a greatly bad experience within the individual’s sleep.
* Everyone was originally planned to be induced into a deep sleep, but the idea was scrapped later on.
* Apologies if there are any known AUs that have the same function, plot, idea, or name as this one.