Chapter One: Doze
Six months had passed after Frisk, a short human boy at the age of ten, had freed the mythical Monsters that had been sealed behind the legendary Mount Ebott. After coming onto the surface, Papyrus, the gangly, enthusiastic skeleton with a taste for spaghetti, had taken a role as the ambassador of the monsters after Frisk had politely refused. Despite everyone's doubts, Papyrus' nonthreatening demeanor and boundless kindness had quickly convinced the humans that there would be no reason to start another war.
Frisk, meanwhile, along with the monsters, was adjusting to a new life on the surface. Many of the monsters had worked together to create a small village near the outskirts of the human city.
Seeing as different monsters had different needs and tastes, the village was less an actual village and more a hodgepodge of homes, with different styles and types of houses arranged in a large array. Undyne had worked together with Alphys, the royal scientist (and her girlfriend) to design and build a house. It essentially resembled Undyne's original home underground (which had burnt to the ground following a cooking fire), with small touches from Alphys' laboratory. Asgore, the former monarch of the Underground, had built a small but elegant home in a small clearing that resembled a log cabin more than anything, with golden flowers creating a broad path out on the front lawn. Papyrus, and his brother Sans, had inexplicably managed to transport their original house from Snowdin to the surface, complete with unmelted snow still resting on the roof.
Toriel, the former queen of the Underground and Frisk's adoptive mother, had constructed a humble little house that was vaguely reminiscent of her original home in the Ruins of the Underground catacombs.
Frisk had finished all his chores for the day and done his homework, so he decided to go out for a walk back through the Underground. After telling Toriel where he was going, packing one of his cell-phone- borne dimensional boxes (created by Alphys) with everything he might need- flashlight, bag of potato chips (courtesy of Sans), first- aid kit- he set out for the Underground.
Could we not have done anything else today? Said Chara as they entered Waterfall. Chara was the first adoptive daughter of Toriel about a century ago, as well as the first human to fall into the Underground. She had been the (adoptive) sister, as well as best friend, of Asriel, the prince of the Underground. After a plan to free the monsters from the Underground, which involved her killing herself so Asriel could take her soul and use its power to cross the Barrier to the surface world, where six more human souls could be acquired, went horribly wrong, she ended up sleeping for decades where Toriel had buried her body, until Frisk fell into the Underground, at which point her essence latched onto Frisk's soul, binding her to him as a phantom that only he could see. Asriel, however, went through an unfortunate sequence of events and was revived as a soulless flower.
We could have. But I enjoy exploring this old place. Rebuffed Frisk as he turned a corner.
We've been here so many times before, and haven't found anything ne- what the- that wasn't here before. Chara stopped her petulant retort mid- sentence to acknowledge the very new thing that Frisk had wandered into.
A period of stunned silence followed before Chara spoke again. Well then. I suppose I stand corrected.
What Frisk had stumbled onto was a long, empty hallway that seemed to have spontaneously constructed itself. Instead of the room lying beyond the hallway, a swirling, seething darkness filled the threshold of the far side of the hall. The strangest part, however, was the ash- grey,
spotless door sitting on the wall about halfway down the hallway. Frisk stepped closer, and upon inspecting it, found that it was melded so completely into the cave wall- almost fused to it, in fact- that it was almost part of the wall itself.
Frisk tentatively grasped the doorknob, and was surprised when it felt exactly as a normal knob should- he didn't know what he was expecting, but he certainly wasn't expecting ordinary steel.
Wait a minute. Interjected Chara. You can't seriously be thinking of entering a weird grey door mashed into the wall of a hallway that appeared out of thin air, are you?
Frisk turned the knob.
Have you not given one thought as to what could be behind that door? It could be a terrifying beast, or a room that you can never escape, or just a portal to nowhere, for God's sake!
Yes, but it could also be holding someone we need to rescue, or some kind of treasure, or even a portal to another dimension! Replied Frisk.
The door was pushed open.
Inside was one of the strangest locations the two ever thought they would see in their (after)lives. The door held an endless, barren grey void, and as Frisk stepped inside, he noticed that a short ways away from him, the void seemed to curl sharply in on itself, creating walls that shifted as Frisk looked at them.
In the center of the 'room' laid a gaping pit, not unlike the one Frisk had fallen into to reach the Underground from Mount Ebott, with the difference being the fact that this hole was much more sinister- looking, not only being unnaturally dark- even by magical standards- but curling up from the depths was a miasmic smoke that seemed to actively swallow- no, devour- the light around it, making the smoke even darker than the hole itself.
*There's a dark hole here that's who knows how deep.
Look inside?
Yes No
Frisk, what are you doing?! Chara shrieked as Frisk moved closer to the hole to peer directly down into its depths. This is exactly how you fell the first time!
Frisk, however, paid her no mind, and stuck his head out over the pit, gazing into it, not even noticing he was leaning forward drastically, beginning to lose his balance.
FRISK, GET BACK, YOU IDIOT, YOU'RE GOING TO FALL-
But it was too late, as Frisk had already toppled and fallen, head over heels, into the abyss.
Hey! This is my first attempt at writing a fanfiction, so the chapters are going to be pretty short at first. Also, as you might expect, I'm still trying to get the hang of using this site, so please tell me if you can give me pointers.
If you're wondering why I decided to have the main character fall into a pit in the first chapter, don't worry. All will be revealed.
Also, yes, I am well aware that the player characters in UNDERTALE have no canonical gender, but after reading quite a few fanfics starring this dynamic, I decided to put it into my own story.
Stay tuned.