Chapter 1:

Mabel stirs, her eyes opening up slowly. Her brain is throbbing a lot. She sits up slowly and looks around, adjusting to her surroundings. It's a little dark. Suddenly, she remembers the whole ordeal. The fight, running away to a mountain with Dipper trailing behind her and then the fall. She accidently fell into a hole. She should've cracked hundreds of bones, heck, she shouldn't even be alive! Her body aches a little, but otherwise okay.

How is that possible? She then looks at the ground, realizing why the impact didn't kill her. Underneath her is a bed of golden flowers.

"They're so pretty..." Mabel whispers, awestruck. Then, she snaps up.

"No! This is no time for flower viewing, Mabel, you have to get out of here!" she scolds herself and gets up. Dusting her clothes, she looks up but regrets it. The light was blinding her vision. Mabel looks away to readjust her eyes. After a few moments, she again gazes up.

With a hand to shield her eyes a little, Mabel tries to see something, anything other than the light.

Maybe Dipper's there?

"Dipper! Dipper, can you hear me? Dipper!" Mabel cries out, her eyes squinting. She looks away, her vision blurry.

Where's Dipper? Why isn't he responding? Can't he hear me? Will I get out of here?

A thousand thoughts swarmed through her mind, all of them were negative ones, but she pushed them aside. Even if he can't hear her, he'll definitely find a way to rescue her. Dipper's the smart twin, he can get out in any situation.

She thought about the last conversation that they had, Mabel can't help but feel depressed. She remembers their fight that they had. It's still fresh in her mind.

"I can't believe you agreed to that! Everything's going away and now you too?!"

"Mabel, things change. We can't stay like this forever"

"It all has to end someday.."

She didn't realize that she's been crying until now, with the tears welling up in her eyes, making her vision blurry. Mabel has never felt more alone like this. Might as well explore the place. She again checked her surroundings and spotted a path. Without giving a second thought, she took that path.

Upon going further along the path, an entrance appeared. Mabel hesitated, casting a glance back at the place behind her. With a deep breath she went in.

"Howdy!"

Hi, everyone! My name's Ivy and this is pretty much the first story that I'm publishing here in . Please go easy on me as this is my first time writing a fanfiction. I have soooo many ideas about so many fanfics. This is one of them. I had this Gravity Falls x Undertale idea ever since I finished the game. I'm so so very sorry for my grammar and mistakes! English is not my native language, I'm still learning. But criticism is appreciated! The next chapter will come up this week I promise, and it will be bigger than this one!