Collapsed Timelines

Collapsed Timeline's logo, created using a logo generator site by Ruyi Li

**Collapsed Timelines (or C!T)** is an AU that takes place across different universes, but is based in the Omega Timeline. It follows the viewpoint of a Frisk from SwideTale, an AU about to be destroyed by Error Sans. However, a new villain comes and kills Error instead, and Frisk is whisked away into the Omega Timeline for safety. When the villain begins to threaten the existence of the Multiverse, CORE Frisk entrusts Frisk, as well as a younger version of Underswap Chara to save the Multiverse.

## Characters

### Frisk (SwideTale)

SwideTale Frisk (short for Faith Risker Haart) is a cheerful and helpful 8-year-old, who was just about to fall into her underground by the time Error showed up to destroy SwideTale. She is saved by CORE Frisk after the villain, a Sans with red eyes, and wielding a katana. CORE names him Collapsed!Sans, and entrusts her and Chara to go stop him.

Frisk serves as the main viewpoint of the story, taking the Protagonist Role and having the most of the book told through her POV.

### Underswap Chara

Collapsed Timelines's take on Underswap Chara is that of a young human just younger than Frisk. She takes the form of a sibling to SwideTale Frisk and the Recluse Role in this AU. She is extremely scared of heights and needles. Near the end of the book, she ends up kidnapped by Collapsed!Sans and has to have Frisk save her, acting as a damsel in distress.

Unlike SwideTale Frisk, Underswap isn't destroyed, but this Chara's specific timeline is, leaving her stranded by the specifics of the Omega Timeline.

### CORE Frisk

CORE Frisk acts essentially to her counterpart in CORETale, with some differences. Some examples include her courage from Underverse, and the exemption of the Dumb Asks Disposal Service. CORE Frisk acts as the guardian of SwideTale Frisk, adopting her as her own when her AU is destroyed, earning her the Caretaker Role. CORE Frisk is the one to see first hand, the destruction that the being she names Collapsed!Sans brings, and entrusts SwideTale Frisk and Chara to defeat him. They also give the kids a device that allows them to summon anyone from any AU to help, and the ability to jump through timelines and AU's, much like themselves.

### Error Sans

Error Sans acts almost exactly like his first depiction by CrayonQueen in Errortale. Early in the story, he goes on a routine destruction of an AU, that being SwideTale, before he encounters the being known as Collapsed!Sans. Wrongly thinking Collapsed!Sans is the Sans of SwideTale, he goes in for the kill. Unfortunately, this ends up being a fatal mistake, as Collapsed!Sans brutally murders him and crushes his SOUL.

### Collapsed!Sans

Collapsed!Sans is the villain of this AU. An unknown being at first, he is named such by CORE Frisk, who is able to witness multiple destructions of AU's due to their omnipresence. CORE Frisk names him after his ability to make AU's collapse, causing any inhabitants in the Omega Timeline to be without a home, and therefore stranded refugees. In the late parts of the book, Collapsed!Sans goes after the Omega Timeline itself, and sets the stage for the battle against him.

Collapsed!Sans responds to anything antagonistic towards him with incredible violence. An example being the murder of Error Sans, and the annihilation of SwideTale.

### Undertale Papyrus

Papyrus acts almost identically to his depiction in Undertale, the only exceptions being the Disbelief Papyrus-inspired magic, and the ability to enjoy puns.

He is hired by SwideTale Frisk and UnderSwap Chara during their visit, and is then able to be summoned by the device.

## Locations

### SwideTale

SwideTale is a Basic Change AU of Undertale that serves as the start of Collapsed Timelines. Not much is seen of this AU before its destruction, but what is known is that it places the Underground in Canada, and has the Underground be extremely Canadian. It also takes place in a fictional town called Swide rather than Ebbot.

### Omega Timeline

The main base of operations for this AU. Despite CORE Frisk being based on their CORETale iteration, this version of the Omega Timeline draws insperation from Omega Timeline: Poppy's Story, instead. The way the Omega Timeline functions in the AU is that, while once peaceful, the timeline quickly turns into a refugee centre during the crisis of Collapsed!Sans, much like the Refuge area in OneShot.

Later on in the AU, it comes under siege by Collapsed!Sans, and turns into the scene of the AU's final battle.

### Underswap

Home of Chara. This AU is visited first, by request of Chara herself, to allow herself to see Sans and Papyrus once more.

### Undertale

The first AU visited as part of the quest to save the Multiverse from Collapsed!Sans. While here, SwideTale Frisk and Underswap Chara manage to hide from Undertale Frisk, who is currently going on a Genocide Run, help Undertale Sans to defeat UT!Frisk, and recruit this AU's Papyrus.

## Miscellaneous

* Since this AU takes place in the Omega Timeline rather than a singular AU, many versions of the same characters appear.
* Errortale Sans has been significantly nerfed, as he gets killed off.

## Story

* 1: The Story, The Myth, The Legend.
* 2: Swide!Tale (Press Z or Enter)