The Void

The Void contains the various AUs that have been created as well as many creatures.

## Structure

### Appearance

In its natural state, the Void is pure nothing, not even having a color [28], but it changes based on an observer's expectations, thoughts, and experiences. For example, if you imagine it to be terrifying, it will be terrifying or if you enter without realizing, it will be a slightly off version of reality. Navigation throughout the Void is most easily accomplished by willing yourself to expect certain things to navigate as you please, though doing so requires high amounts of Determination and those without it will be trapped in a prison they themselves created [2].

Physics can change based on the observer's perception, though most people interpret gravity as a floaty feeling somewhere between weightlessness and being on the moon [20]. Should multiple people be together in the Void, a sort of demiplane forms would form, incorporating the thoughts and feelings of those present to create the rules of reality within it. Ironically, this is when the Void is at its most stable [3].

In addition, survival long term requires a person to have something to focus their thoughts on [18], such as a goal, lest they eventually die. This requires Determination [19].

### AUs

The Void is the space between AUs [10] with the distances between AUs being immense and not all of them are Undertale-related [12]. The AUs themselves are attracted to similarity and arrange themselves by how similar to the other they are [22], so for example The Alternate Timeline and AFAC were close enough together for Maverick to cross through the portal. One of Trash Queen's requirements for a crossover would be that the other person has an Undertale askblog, meaning AFAC AUs are a subgroup of Askblog AUs and thus could connect easily [1]. Time runs differently in AUs than in our world, with time always running slower at varying rates in Ask Frisk and Company [11].

Some AUs do get destroyed, but because no one remembers them, those who have observed them need to look for gaps appearing in their memories for proof they existed.

## Known AUs

Beings from AUs that spend too much time in AFAC start to warp to adhere to its laws of reality [14].

### Man Who Speaks In Hands

The Man Who Speaks In Hands is the first AU that AFAC interacted with. The MWSIH Gaster came through a portal to AFAC and the AFAC Frisk went through to MWSIH. The two AUs exchanged characters of sorts. The Gasters resurrected Lucida, MWSIH Gaster's deceased wife, who returned to her own AU, while Chiller the gaster blaster from MWSIH decided to stay in AFAC permanently. The connection has since been severed, but it is possible to see what is happening in MWSIH.

### Ask Drunk!Chara

Ask Drunk!Chara is the second AU that AFAC interacted with. Drunk!Chara fell down a manhole and wound up in AFAC. This lead to AFAC Chara possessing them and prompting Ask Drunk!Chara's Frisk to come looking for them. The two were then unceremoniously thrown through the portal by Gaster just before the connection was permanently severed.

### Errortale

The cast has not actually interacted with Errortale characters, but due to copious asks trying to summon Error!Sans or get Trash Queen to include him or saying he would naturally want to destroy this AU, Trash Queen got sick of it and permanently blocked him from getting in. For more information, see here.

### Ask Chara and Friends

This AU is a swap!version of Ask Frisk and Company, with the roles of the characters having been swapped around as they are in Underswap and one of AFAC's closest cosmological neighbors [13]. It was created by Miamouse, a fan of Ask Frisk and Company. ACAF!Hermann once looked around with a telescope to try and see if there were any worlds similar to her own. When she spotted Ask Frisk and Company, Trash Queen, who had grown larger than the AU itself and coiled herself around it, waved at her. ACAF!Hermann promptly packed up the telescope and left [8].

## Interaction with AUs

### Gray Areas

A gray area the space around an existing AU where the Void and the AU blend and beings from both worlds can interact safely [29]. Such places include Gaster's gray room and inside the portal behind the couch [9].

### Void Tears

Void tears are places where the barrier between an AU and the Void is thin enough to allow void inhabitants to cross over [5], or people to enter The Void [23], provided they can fit [24]. You can generally tell where these places are by how they feel "haunted". The True Lab, behind the couch [5] , the place in the CORE where Gaster jumped [16], are considered Void Tears. It is possible to mitigate crossover in a specific gray area with devices like the machine Alphys hooked up to the portal [17]. They can be made bigger, and it is technically possible to move them, however, no way is known to close them [25].

### Erasure

When a person falls into the Void, everyone who had memories of them suddenly forget them. The mind then comes up with explanations for why there is a gap one's memories, but if the person was closer to someone, that person will have an easier time remembering the erased because they will get hit with pangs of emotion when reminded of a person they don't remember. All others simply don't remember forgetting anything and life goes on for them [27].

## Gasters

When a Gaster is thrown into the Void, they are able to interact with their AU because they have what is essentially a lifeline keeping them from being lost forever [1].

## Inhabitants

The Void is not uninhabited. It has its own lifeforms that populate it. They appear alien to us because they adapted to a radically different environment than us. While they aren't inherently malevolent, many can hurt people. Unlike in Lovecraft's work, it is possible to understand and interact with void inhabitants without going insane, though it may involve a perspective shift, which could make the speaker sound insane to others [6]. Making a contract with one does not require magic, with only an agreement needed [21], and while it can be done with any of sufficient intelligence, not all will keep their word [26].

### Known Creatures

* Finley
* Gaster Blasters
* Uncannies
* The Dream Watcher
* Prophecies
* Memoryhead [5]

## The Astral Plane

The Astral Plane is a purely theoretical plane that supposedly houses magical energy. It overlaps with the Material Plane and each can effect the other in some ways, governing how magic can affect physical matter [7].

## Trivia

* It is theoretically possible for an extraplanar being that can grant wishes to exist and be able to be summoned [4].

## References

[2] http://askfriskandcompany.tumblr.com/post/182913062952/you-said-a-tiny-bit-of-insight-about-the-void-in
[3] http://askfriskandcompany.tumblr.com/post/182947343747/what-if-more-than-one-person-are-close-together-in
[4] http://askfriskandcompany.tumblr.com/post/183046277532/weird-question-could-the-dragon-balls-exist-in
[5] http://askfriskandcompany.tumblr.com/post/183863181752/whats-up-with-the-memoryheads
[6] http://askfriskandcompany.tumblr.com/post/183885925157/speaking-of-eldrich-creatures-do-cthulhu-or-any
[7] https://askfriskandcompany.tumblr.com/post/186272993272/so-waaaaaay-back-in-2017-you-said-that-magic
[8] https://askfriskandcompany.tumblr.com/post/618736768976584704/it-would-seem-acafhermann-ran-into-trash-queen
[9] https://askfriskandcompany.tumblr.com/post/620147801471516672/so-you-mentioned-the-angels-prophecy-was
[10] https://askfriskandcompany.tumblr.com/post/625426864124592129/among-stories-there-are-debates-whether-the-void
[11] https://askfriskandcompany.tumblr.com/post/628320524811042816/whats-the-difference-in-time-compared-to-our
[12] https://askfriskandcompany.tumblr.com/post/629766377890349057/during-gasters-time-in-the-void-could-he-see-into
[13] https://askfriskandcompany.tumblr.com/post/636019829005041664/so-im-following-both-this-and-acaf-and-i-keep
[14] https://askfriskandcompany.tumblr.com/post/637323634651824128/is-there-a-term-for-people-with-equal-amounts-of
[15] https://askfriskandcompany.tumblr.com/post/151185040357/how-come-chara-became-a-ghost-while-the-rest-of
[16] https://askfriskandcompany.tumblr.com/post/639746860044730368/so-physically-the-core-exploded-and-magically-it
[17] https://askfriskandcompany.tumblr.com/post/641813609771581440/is-the-portal-behind-the-couch-still-working
[18] https://askfriskandcompany.tumblr.com/post/642546213516951552/so-would-the-void-be-the-opposite-of
[19] https://askfriskandcompany.tumblr.com/post/642639710536318976/so-based-on-that-earlier-ask-you-can-only-survive
[20] https://askfriskandcompany.tumblr.com/post/642830605233618944/so-how-do-physics-and-time-work-in-the-void-is
[21] https://askfriskandcompany.tumblr.com/post/644092029482205184/what-kind-of-spell-is-it-that-makes-a-contract
[22] https://askfriskandcompany.tumblr.com/post/657637469404168192/so-youve-said-multiple-times-that-the-multiverse
[23] https://askfriskandcompany.tumblr.com/post/675835807610880000/does-gaster-understand-how-the-void-works-is
[24] https://askfriskandcompany.tumblr.com/post/676410387160285184/wait-by-that-logic-gaster-could-have-escaped-the
[25] https://askfriskandcompany.tumblr.com/post/676868132095262720/if-there-can-be-several-void-tears-in-one
[26] https://askfriskandcompany.tumblr.com/post/676868373280440320/do-other-void-creatures-create-contracts-with
[27] https://askfriskandcompany.tumblr.com/post/684489999735013376/a-lore-heavy-question-when-gaster-fell-into-the
[28] https://askfriskandcompany.tumblr.com/post/691999361136214016/the-color-of-the-void-magic-changes-color-to-black