In a last ditch attempt to escape, Frisk, alongside her twin brother Harley, run up MT Ebott and leap into the Underground. What they find is not what they expect. Read as truths are revealed, enemies become friends, and the true threat to the Underground comes to light... F!Frisk F!Chara M!OC. Genocide Route First, Original story after Pacifist, No Marty Sue, M for Violence

Once upon a time, a mother had lost her son. He had disappeared without a trace. Several years later, her hike up the local mountain of her new hometown leads her on a journey that begins where his had ended. Hopefully, she will find her son and set him free. Hopefully... If she can set herself free as well...

At the end of the war, monsters don't have the choice : they have to join Mont Ebott for survive another day. Sans and Papyrus, forced to run away after the attack of their village, are delivered to the horror of the war without any help and this one objective. But as sons of the royal scientist, W.D Gaster, they are an easy target. Both of them start a dangerous journey.

What if two humans were in the Underground at once? What if one human was DETERMINED to stop the other? What if they could both SAVE? What happens when an Unstoppable Force meets an Immovable Object? When a certain scientist pulls enough of himself together, he finally finds a way to stop the destruction of his world. (Undertale AU. Rewrite of DT.)

The story right after Undertale.

Frisk and Chara were supposedly just average kids, living in a world where the human monster war never happened. However, when they find out about alternate universe, it is a literal race against time, to save not just their world, but others too.

Clover figured after he sacrificed himself, he'd be absorbed by a monster eventually and break the Barrier. It's safe to say that waking up in the back of another human's head along with another dead child was not what he predicted at all. So naturally that's what happened.

Rodrigo, who just began playing Undertale for the very first time, has to find out which way is best as he ends up in the actual Underground. But when a Fallen Child's soul inhabiting Rodrigo's body tries to drive him to violence, will someone help guide him down the right path? Contains spanking, and minor mention of death, you don't have to read if you don't like that.

Follow Uriel Dreemurr - formerly Frisk - as they live life in the Underground with their family. Making friends, dealing with bullies, helping the royal family heal, its all in a days work for the first Hybrid.

Frisk's resets had gotten out of hand- no one even knew why he was doing it. Not even Tessa. But with the threat of a permanent timeline in the balance, Frisk has to stop playing the "hero" of his cousin's life to save the Underground. T because there are many, many heavy topics in their backstories, such as suicide, death, and divorce.

You are a retired vet that visits Grillby's often. 3rd person m/f lemon in ch 4 and 8 so far some knife violence

In a scrambled timeline, Frisk has carved a dusty trail through the underground countless times, and a scattered scientist has had enough. He gambles on pulling a human from beyond his reality to try and finally stop Frisk. He's hedged his bets on...this sleepy-lookin' girl lugging around a bootleg sword to go fight a squinty kid in her pajamas. This timeline's doomed.

While The girls are At The Dentist With Sans Having Their Checkup Both Papyrus And Flowey Get To Spend some Time Together Doing Puzzles And Get To Mail A Letter To An Old Friend Flowey Hasn't Heard In Years.

After Chara eats Way Too Many Chocolates she gets A Toothache So Papyrus Suggests That Sans takes both Frisk And Chara to The Dentist for Their Checkup... What will these Two get themselves In Well, Read to find out!;)

Another Human has climbed the mountain... You need very little knowledge of the game to read this story!

Twenty years have passed since the brutal war between monsters and humans that killed off almost all of humanity. Twenty years and your whole life at that, you've spent underground, waiting to have revenge. But when you are forced to face the truth that perhaps things were far from what they seemed, you found yourself feeling a dangerous connection towards a skeleton monster.

You know all about the souls of Determination: Chara and Frisk. But do you know of the other six souls? Patience, Bravery, Integrity, Perseverance, Kindness, and Justice. In a fresh new take on Toby Fox's mysterious characters, all six souls tell their side of the story, and just how they came to be used to free the monsters.

The hangout with Sans at MTT didn't go as planned.

After waking up in the body of the protagonist of Undertale, the newly named Frisk has some growing up to do. He wants to ensure everyone gets home safely, but how can he do that when he can't even SAVE himself. The first part of this story is set in Undertale.

When Blaze climbs the mountain, he never imagines he'd survive the fall down into Mt. Ebbot, but he did. And now, venturing the Underground, he might just find a home he never thought he'd have.

Papyrus is confused as to why Undyne is so upset about the scars on his hand. It's nothing serious after all! Why is everyone freaking out about it? Everybody has a way of coping with things, his coping just happens to involve scratching, what's wrong with that? According to his friends and family, a lot of things are wrong with that.

Frisk never speaks, nobody knows the true reason why, and nobody questions it. But what if she could express herself without uttering a single word? She gets a notebook from Papyrus that she could use to speak in. Using her poor writing, she explains to her skeleton friends the true reason she never uses her voice.

Flowey told him to do it, it's his fault! He would never actually hurt himself! Papyrus thought as he made another cut. The room felt distant as if he was watching it from somebody else's perspective. He wanted to stop, to just throw the glass shard away, To tell his brother about what's been bothering him. But he couldn't, he was too ashamed.

Now that monsters have gone to the surface, Frisk is busy trying to maintain peace between Humans and Monsters, who aren't getting along peacefully. But that all goes out the window when Frisk is given a mission: To save the other children who died in the Underground. To complete this mission, Frisk must go on a journey across time to resurrect the fallen children... AO3/WP/DA also

The Riverperson is a very mysterious person in the Underground. Letting Frisk ride in their boat wherever they need it. They are always so carefree, but what if there is more underneath the surface.