Hello again everyone! This is the Great -

Sorry, I mean this is Blizzard. My friend ColorlessFlake and I wanted to toss you a collaborated story, and so here it is! It's an Undertale AU called Fallen Star. At the beginning of each chapter I'll note down who wrote it so you don't go running to the wrong person with questions about its content. Or worse.

Anyways, without further ado, here we go -

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Chapter One - Reset

Author: Blizzard

Loading story...

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"..."

"..."

"so... guess that's it, huh?"

"don't say i didn't warn ya."

"..."

"welp. i'm going to grillby's."

   Frisk's hand trembled as they watched the bleeding comedian skeleton limp off to the side. They gripped their knife tighter.

"papyrus, do you want anything...?"

   A tear rolled down their face as they clenched their teeth, their knuckles turning white due to still holding the knife very tightly. The image of a certain tall, goofy skeleton wearing his battle body and great red scarf with his arms spread wide open flashed before their eyes.

   A soft dusting noise brushed Frisk's ears from behind. Not too long afterwards, they felt their LOVE increase again.

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CHARA     LV 20   HP 99/99

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   I've done it, they whispered to themselves.

   I've killed him. I've... committed a true genocide at last.

   They slowly loosened their grip on the knife and fell to their knees trembling. They buried their face in their hands and began to sob.

   Why the crying? A voice called to them. You've done it.

   *I know,* Frisk choked out. *I've killed everyone. Even - even Sans...*

   And what, now you feel bad? The other voice pressed.

   Frisk turned their gaze to the cracked tile floor with a slight nod.

   Don't worry about the rest of it. I'll take over from there on. You can just sit back and relax.

   Frisk slowly relaxed and stopped trembling as they felt a strange aura pass over their entire body and take full control. Without any prompt from themselves, their body picked the knife back up firmly and stood up.

   You've done a great job, partner.

   Now let me finish it -

   A blue-and-white blur suddenly knocked them over from behind. Frisk felt claws digging into their back, piercing through their tough shirt and poking at the skin underneath. The mysterious aura screeched and twisted Frisk's body around until their back now pressed against the floor, knocking the claws off their back.

   Once their back hit the floor, though, a blue paw slammed down against their chest, blazing blue claws unsheathed. The blue slowly faded to white as Frisk looked up the creature's arm. Their body was a snowy white color, their facial features almost... skeletal. This creature's eyes were peculiar yet familiar, with a blazing blue left eye and a round white right eye, the sclerae of both black. Tears formed in the corners of each eye, and their teeth were clenched in a dry snarl. They somewhat resembled the form of a cat, though the insides of each ear were the same shade of blue as its paws and long, flowing scarf.

   "YOU KILLED THEM!" They screeched with a voice filled with pain, anger, and grief. "YOU KILLED EVERYONE!" A tear rolled down the side of their face as they raised a burning blue paw.

   Frisk had never seen this monster down here before. Not in previous runs, not hidden on the side, not ever. This was a strange enigma.

   Apparently the being controlling Frisk's body didn't care, because they slashed upwards with their knife and threw the other creature off. The blue blaze flickered and died, reducing to little sparks next to the user's paw. Frisk's body leaped back off the ground and raced towards the opponent, ready to deliver yet another killing blow.

   Luckily for the opponent, they dodged out of the way in time and disappeared in a flurry of blue wisps.

   They got away, the voice growled. Was it... confused? Never mind. Let's just end this all.

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   Greetings. I am Chara.

   Thank you. Your power awakened me from death.

   My "human soul." My "determination."

   They were not mine, but YOURS.

   At first, I was so confused. Our plan had failed, hadn't it?

   Why was I brought back to life?

   ... Chara stopped and turned to Frisk, as if pointing a spectral finger towards the other fallen human with their eyes.

   You.

   With your guidance.

   I realized the purpose of my reincarnation.

   Power.

   Frisk started to tremble. Whether it was from sadness or from fear, they couldn't tell.

   Together, we eradicated the enemy and became strong. HP. ATK. DEF. GOLD. EXP. LV.

   Every time a number increases, that feeling...

   That's me.

   "Chara."

   Now. Now, we have reached the absolute.

   There is nothing left for us here.

   Let us erase this pointless world, and move on to the next.

   *No.* Frisk tried their best to stay firm. Killing everyone was horrific enough. But erasing the world? Unthinkable. That was more insane than successfully finishing off a genocide. *Chara, I won't do it. I will not erase this world.*

   Chara frowned. No? Hmm. How curious.

   You must have misunderstood.

   Frisk gulped and prepared for the worst.

   SINCE WHEN WERE YOU THE ONE IN CONTROL?

   Chara swiped a hand forward and slashed Frisk across the chest, executing a successful kill. 9's flashed in front of Frisk's eyes, sending them back to the load screen.

   Frisk shook their head and rubbed their eyes. I need to go back.

   They stepped back in only to find themselves in an empty void with nothing but the sound of howling wind.

   Frisk brushed themselves off and sat on the floor with crossed legs.

   *I can be patient,* Frisk told themselves. *I can wait.*

   They stared off into the distance for what seemed like eternity, wondering. What should I have done? I should've reset a long time ago. What if the Underground doesn't forgive me? What will happen when I reset?

   Then they blinked. There was something painfully obvious they should have thought more about. Why can't I hear or see Chara?

   They sighed. *Either way,* Frisk huffed, *I'm filled with DETERMINATION. There has to be some way to reset the timeline, and I'm going to find out how.*

   They attempted to ask the endless black void to open up the save screen. When that didn't work, they started yelling into the void, calling the name of the first fallen human.

   But nobody came.

   Frisk sat on the floor with a defeated sigh. All of their efforts, even if small, were to no avail. They began to let go of their determination and give up.

   Suddenly a voice called from the void.

   You're still here.

   *Chara,* Frisk whispered. Perhaps they had heard Frisk calling out their name after all.

   I suppose that means you want to return. Even though you've seen every ending, every outcome, every little detail.

   Frisk braced themselves again.

   Chara's voice seemed to sigh from afar. Are you truly done tearing this world apart?

   *No,* Frisk quietly responded.

   Do you truly think you are above consequences?

   Frisk thought carefully before answering. *No.*

   Hmm. Then why is it that you so badly want to return? To a world you have already destroyed with your constant resets?

   Frisk felt a fizzle of hope in their fingers like lightning was traveling between the gaps. It felt encouraging.

   If you seriously think you can SAVE the world we ERASED, you can certainly try.

   *Yes, I can,* Frisk replied, holding out their hand and summoning the SAVE screen buttons with a snap.

   What the -

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CHARA     LV--  HP--/--

*CONTINUE *RESET

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   How is this possible?

   Frisk smirked and slammed their hand over the RESET button.

   NO! YOU WON'T -

*Reset successful.

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   Frisk landed in the Ruins once again, sitting on the bed of yellow flowers.

   *The reset worked,* Frisk whispered to themselves. *I can't believe it worked.*

   They got up and brushed themselves off. Off to meet Flowey.

   But when they reached the little grass patch where Flowey would usually pop up and "teach" them how to battle, the soulless yellow flower was nowhere to be seen.

   Frisk poked around at the grass and even started stamping at it with a foot, but not even a yellow petal was in sight.

   The human blinked. Did my reset cause something to go wrong? Was I supposed to be able to reset there? Was my determination strong enough to affect the timeline? Or is Flowey just scared of me?

   I need to check and see if everything is okay. They ran away from the field to the next room in the Ruins, their shoes making light clack clack clack noises as they came into contact with the floor. They pulled every lever, solved every puzzle, even looked behind every pillar and through every tunnel. They encountered monsters like Froggit and Whimsun, but they didn't encounter a certain fluffy boss monster.

   In fact, Toriel was nowhere to be seen.

   Frisk started to tremble. If both Flowey and Toriel weren't here...

   Did I prematurely kill them with my reset?

   Whatever it was, something was definitely wrong with the timeline.

   Chara was - no, I refuse to believe Chara was right.

   This timeline isn't flawed.

   It's just me.

   They burst past the closed Ruins doors and into Snowdin, met by a chilly wind. They either dodged past or quickly solved all the puzzles scattered across the open fields and narrow passageways, making sure this time to definitely spare every monster they encountered.

   Snowdin Town was lively as Frisk remembered in their first few runs, when they spared everyone in Snowdin. They tore past everyone's stares and even the bright yellow SAVE point sitting next to the shop.

   Papyrus stood a little ways before his house on the path, his short red scarf billowing in the chilly breeze. As he saw Frisk racing over, he turned and waved a red gloved hand.

   "WHY HELLO THERE!" He greeted, giving Frisk a bright skeleton smile. "WHAT SEEMS TO BE THE PROBLEM? YOU LOOK LIKE YOU'RE IN A HURRY -"

   Without any warning, his white monster soul appeared in front of him, and something that resembled red-and-black tentacles snapped themselves around it. The tentacles pulled backwards on the soul, making Papyrus follow the movement without any choice.

   Behind the tall skeleton stood two beings outlined in red. Both stepped out into view. Frisk gasped. Papyrus let out a small yelp.

   One of them was Chara, their small red eyes glittering and smile wide and bright. They held a knife that seemed to be completely made of faded magic in one hand, the other running a finger over the sharp edge of the knife in a creepy manner.

   The second one outlined in red looked like the monster Frisk/Chara had battled in the Final Corridor in the previous timeline, but slightly inverted. Their paws were a bloody red, fading to black as it went up the leg. The entire rest of their body was black, their white ear-tips and nose being the only exception. Instead of a blazing blue left eye this monster's right eye blazed red, like the insides of their ears. Their red scarf held multiple tears throughout, from the segment wrapped around their neck to the flowing piece behind. As Frisk looked closer, this new monster's left thigh had an altered Delta Rune emblazoned on it, and on their right thigh Frisk saw a glimpse of what looked like the shape of a soul broken in half, like a broken heart symbol often used on the surface. Frisk shivered.

   "Oh, Frisk," Chara crowed, their voice echoing after the words spilled out of their mouth, "that may have been some good trick you pulled on me. However..." They turned and locked eyes with the other monster to their left, who grinned an evil bloody smile. "I am stronger than before. You and your nasty tricks will no longer stop me this time."

   The new monster unsheathed their blazing red claws with a loud shing! and leaped at Frisk, paws trailing with a red mist that looked almost like drops of blood. Frisk just stood there wide-eyed, remembering the blue flame in the first new monster's paw and eye with a flash. They wanted to move but were too scared to move, their eyes fixed on the approaching death monster.

   Something yanked on Frisk's shirt from behind, knocking the breath out of them and pulling them backwards like Papyrus just was.

   "Are you nuts?" A voice laced with furious bewilderment whispered from behind the human, and they recognized it immediately as the voice of the blue catlike monster in the Last Corridor.

   "nope." A more familiar, deeper voice answered in a low tone, and the grip on Frisk's shirt loosened and transferred to their right arm. What felt like segmented, bony fingers squeezed against Frisk's arm and made them gulp. Sans. "get us outta here."

   "Fine." A paw laced with claws gripped Frisk's left shoulder tightly and applied a small amount of pressure as it pushed off downwards. A flurry of blue sparks materialized in front of Frisk's eyes, only allowing them to see two looks of hatred from the human and their new partner, and one look of surprise and fear from the skeleton, before their entire vision was clouded in blue.

   Frisk was barely aware that they were being teleported.

   And Sans was with them, along with the blue cat monster.

   I'm gonna really have a bad time, aren't I?

Aaand sorry, but that is it for chapter 1! Flake (ColorlessFlake) will be writing the next chapter, don't know when that is, but when we know, we'll let all of you know both here and in my updates book (check my profile).

How was it like reading something completely different than what I usually stick to on Wattpad? Especially a collaboration with a good friend of mine? Feel free to tell me all about it in the comments.

Until our next chapter, cya and peace out!

P.S. Yes, that image of the new character attacking Chara is completely drawn by me. Don't use it without my permission. (if any of you have seen it before on Instagram, it's probably because you've stumbled onto my post there.)