Undertale
Unseen Influence
The Final Corridor

Frisk makes it to New Home. The little monster voices speak to them once they walk through. They tell the sad story of Asriel, and the fallen human, who Frisk knows is now Chara. But Chara cannot be that demon, Frisk knows this as a certainty now. As Frisk walks through at a ginger pace, the monsters continue to calmly recollect in his presence.

The humans fearing Asriel, the humans killing Asriel, and the king declaring war. It was all very stunning to Frisk at first, but now Frisk cannot help but get a little teary eyed when they walk through New Home. After they passed through on their crusade against monsters, it feels now that Frisk has no right to set foot here, but the monsters still tell them the story with their best intentions. Frisk takes a few deep breaths. Soon, he will meet the king. Then, the king will die…

… or will he? Frisk hadn't considered the possibility that Flowey will spare him. Frisk begins to jog now, almost excited at the prospect of a happy ending. Frisk's eyes begin to water as they run through the halls, hearing the monsters cry in pain and anger about their stolen hopes and dreams, but Frisk knows how to make this right. Soon, he will meet the king. Then, he will return hope to the people of the underground, at any cost. Frisk has already taken so much from them… it's the least they could do to pay the monsters back.

Frisk passes through the empty lodgings of New Home, and beyond them lies the hall of judgement. Strolling through Waterfall, making uneasy friendships with Undyne and the like were all somewhat predictable for Frisk. Flowey never showed up again, neither did Sans. It makes Frisk a little worried, anything could happen, and Sans said he saw Chara… even though Frisk never did. Surely if Chara was still alive, they wouldn't let Frisk get this far, would they?

Frisk walks through the golden halls of judgement to be met with a familiar person.

"Sans."
"Frisk."
"It's time."
"I suppose it is. Do you want me to go with you?" Sans says with a shrug.
"I, uh… I don't know. I can beat Asgore, I know that… but what happens after… I'm a bit nervous." After Frisk says that, Sans closes his eyes and smiles wider than before.

"Kid, I was wrong about you. Seeing you make pals with my bro, and even Undyne… hah… but that doesn't change the things I saw back in Snowdinn. That… kid… Chara… they're out there. I'll keep an eye socket out for ya. Knock 'em dead, kid." Sans says before inexplicably disappearing behind a pillar.

With pride still in their heart, Frisk continues down the halls and turns left. Beyond them lies the throne room. Beyond that lies the barrier. There, everything will be settled… one way or another.

Frisk made a huge mistake a long time ago. They saw what a true happy ending looked like. They saw Asriel as they truly were, and the monsters went free to live on the surface in peace… but Frisk wasn't satisfied. Frisk wanted to see everything, and that happy ending seemed gone for so long… but now… it appears to finally be in reach again. Frisk wipes their wet eyes on their sleeve and begins to walk into the throne room.

The few rays of the surface's natural sunlight cascade through the impenetrable barrier around them. Here in the throne room, there is just enough light for small yellow flowers to grow. In the middle of the patch of well-tended to flowers, a towering monster in regal clothing stands. To Frisk's confusion, the sound of water as if from a gardener's pale, is absent. In this throne room, the king of monsters stands, silent.

"Curious. I've never seen a plant… cry before." The monster says. Those words send a chill down Frisk's spine. What's happening? What does this mean?! The monster Frisk knows as Asgore turns around.

"… huh?" You must be the one that flower just warned me about. … Howdy! … Erm… what kind of monster are you? Sorry, I cannot tell. Well, we can always-" Asgore tries to say as Frisk's body moves involuntarily! Frisk can feel a knife in their hand growing lighter, as if an extension of themselves! STOP IT! STOP IT! Frisk tries everything they can to stop!

"Now… now… there's no need to fight. Why not settle this… over a nice cup of tea?" NO NO NO NO NO NO NO NO NO

99,999,999,999

"Why… you…" Asgore groans.

DON'T… FLOWEY… DON'T… Frisk thinks to themselves, shuddering.

… … …

For a while, Asgore merely reels in pain, sent to the brink of death by the attack that did billions of damage, but he is not yet dead. Wouldn't Flowey be the one to kill him?

"Asgore… I… this isn't what I wanted to happen…" Frisk says, but Asgore only looks more horrified that they say that.

"Asgore? Asgore can you hear me?"
"ASGORE… I KILLED EVERYONE… I KILLED YOUR WIFE… I'M GOING TO KILL YOUR SON… DON'T YOU REMEMBER ME?!" As Frisk asks if Asgore can hear them, Frisk can hear their own echo. What… is… going… on?!

"Who… are you…?" Asgore pleads.
"I'm… I'm…"
"I AM THE DEMON THAT COMES WHEN THEIR NAME IS CALLED… I AM…
"Frisk… CHARA!"

Asgore's face looks even more horrified as Frisk's knife slashes down on them again and again, his body becoming nothing but dust, but Frisk's knife does not rest! They slash over and over, breaking the soul of Asgore into tiny pieces and breaking the pieces to even more dust! Soon, all that is left of the throne room is wilting flowers, fading sunlight, and a pile of silver dust. Frisk shakily looks down at the knife in their hand, and upon its sheen and reflection, is Chara's smiling face.

"Did you think you were above consequences?"
"Chara… p-please… tell me… why did you do this?"
"Me? So quick to shirk the responsibility of your actions. Have you forgotten that it was you who brought about my reincarnation?"
"I was wrong… I want to make things right… why? Why did you kill Asgore?"
"You could have stopped playing, Frisk. Asgore didn't have to die. You continue to prove to me that you will continue to play this game to the end…"
"I just… want them all to be happy, now… that's all…"

As Frisk stands in the throne room, their body shivering and the knife next to their eye to see their own reflection, a familiar character enters the room.

"Frisk? Have you done… it… no… Asgore… Frisk, why have you gone back on what you said you would…" Flowey tries to say before looking at Frisk's face.

"C-Chara? Is that… you?"
"Asriel… my brother… you're just in time…" A demented, twisted voice lets out as Frisk's face snaps to look at Flowey in the eyes.
"Ah… hah…" Flowey mumbles, shivering, but then he shakes his head.
"N-No! Not again, Chara! I won't let you-"
"Kill you? Asriel, I thought you were smarter than that. It was not me who progressed the story to its desired conclusion…"

"…" Flowey continues to shiver.
"That's right… you understand. It was not I who killed you, but Frisk. Now, I have returned… our plan had failed, but we can finally rectify this mistake."
"Chara, I told you… this plan… I didn't like it anymore! It didn't work before, and now look what happened to you? Please, Chara, stop this! Let Frisk go, we can go back to the way things used to be?" Flowey begs.

Chara frowns, the knife spinning in their hand.
"Asriel, or should I call you Flowey now… do you care for the life of this human?"
"You mean F-Frisk? Yeah, I guess… don't hurt them… they only want to help…"
"Help?"
"Y-Yeah! Think about it, they brought you back to life, and joined me in destroying these memories!"
"Curious… You believe this human to be worthy of saving, because they killed everyone you ever knew, including our mother and father?"
"I… I…" Flowey says, diverting his eyes and sweating, still immensely intimidated by Chara. For a while, neither Flowey nor Chara say a word. Frisk manages to eek a peep out however-

"Please… send… me back… I can… make this right…" As soon as Frisk says that, Chara's face returns with a twisted smile and black eyes.
"You have no idea how to make things right, nor do you have the POWER to do so even if you did!"
"P-Power?" Frisk whispers from their uncontrolled mouth.
"The purpose of my reincarnation, the actions that led to this world being destroyed and reborn… all various extents of POWER. Do you understand?" As Chara says that, they laugh.

It is the most horrifying laugh any of them have ever heard.

"Of course you don't understand. How could you unless you felt that power? Killing Sans? Killing Asgore? Killing Asriel? They all meant nothing. Every single one of them was killed in a single fell swoop, but I know you enjoyed chopping Flowey to bits. All it took was one slash, but you kept on slashing. That wasn't me, Frisk… that was you. You thought that killing the defenseless was power. No… no that was boredom, you learned that from my stupid kid brother." Chara says, glancing over at Flowey.

"Frisk… if you wish to save this world, then I have a proposition for you."
"A… a… proposition?"
"If you can KILL ME… I'll let you go." Chara says, gripping the knife and holding it to their throat, which is also Frisk's throat.

For a while, Chara… Frisk… Flowey… they all say nothing and merely look at the knife.

Frisk attempts to wrest control of Chara's arm, but all Chara does is giggle.

"Is that all?" Chara says as Frisk tries to move the arm some more, causing it to shudder and shake. Flowey's eyes go watery.
"Chara, I don't like this, please stop!" Flowey begs, but Chara does nothing.
"FRISK… YOU ARE WEAK…"
"I… I need… more power! Ngh…!" Frisk grunts, trying their absolute best to move the knife, but it simply will not. Every time they try, Chara giggles a little bit more, before finally outright throwing the knife! The knife zips at Flowey, who barely has time to dodge as it cuts their petal slightly!
"PATHETIC." Chara says, no longer having fun. Flowey looks over in horror.
"ASRIEL…"
"Yes C-Chara?"
"What do you desire from this? Do you truly wish for me to spare Frisk? Do you wish for this world to go on, or for all of these memories to be purged? What will it be, brother?" Chara asks, making legitimate eye contact with Flowey, sending a shiver down his stem.

"I… I… I don't know what I want, Chara…" As Flowey says that, Chara closes their eyes and smile a small bit.
"Asriel… brother…"

"W-What...?"
"YOU ARE PATHETIC!" Chara roars, as the knife next to Flowey moves at their command and cuts Flowey from the ground! In too much pain to scream, Flowey falls limply to the ground, only to be scooped up by Chara.

"There there, brother… soon the darkness will overtake us again. Your reincarnation, as was mine, none of this was meant to happen… and soon… they will matter for nothing. Frisk?"
"Wh-What…?"
"You will die in ignorance."

After Chara says that, everything goes black. For a while, Frisk can see nothing.

Feel nothing.

Hear nothing. Not even the wind.

But someone is here with them.

"Hey."
"F… low… ey…?"
"Nah. It's just me, Sans."
"Sans… how…?"
"I figured something was up, so I followed you to the throne. Saw you kill the king, viciously I might add. He was talking about what you guys had to do, but you were so out of it, asking him if he could hear you. You said your name out loud, then slashed him open… with the power that someone at 1 LV wouldn't be able to…"

"Where… are we…?"
"This, uh, is a mistake I made a long time ago." Sans says, looking around the darkness.
"I… can't move… can barely speak."
"Yeah… you're dying, kiddo. There's no hope for you here, but maybe I can help."
"Please… send me back…"
"To before you fell?"
"No… to the ruins…" Frisk says. Sans raises a bonebrow.
"The ruins… why?" As Sans asks that, Frisk goes silent, and Sans can make out a single tear trickling down their face.

"I need… more POWER…"


Author's Note: I'm rehosting the Unseen Influence Trilogy on account of my patron vanishing. This story will be deleted if he ever returns. Until then, enjoy yourself.