XXPay4XtraShippingsXX-Really? Huh, I'd never actually thought of that. But yeah-the twins are with him. They'll show up next chapter...I can't wait to see your reaction to meeting them in-story XD

Mysterious Mister M-Hey man, welcome onboard! I always love getting a new reviewer. Also *insert lenny face here*. That's all I'm going to say ;)

Disclaimer: If I owned either Gravity Falls or Undertale, I'd be rich.

Pacifica's eyes widened in shock. This couldn't be real. It just couldn't. And yet, Stan stood before her, a sour look on his face.

It was real. He wanted her to fight him. Her chance to get home…and her very SOUL, were at stake. The goat man raised his arms, fireballs appearing in either of his hands.

"Wait, hold on!" Stan threw the fireballs in her direction, and Pacifica screamed as she tried to avoid them.

The blonde thought back to what Stan had told her previously. Maybe she could talk to him?

"Um…" Was all she could think of before Stan threw some more energy blasts at her. This time, Pacifica wasn't lucky enough to dodge, as one of the blasts caught her shoulder.

"AUGH!"

"Come on, kid!" The old goat shouted. "Fight back!"

"I don't want to fight you!" Pacifica shouted back before she could stop herself. It was true, though. Along with the fact that she still didn't know how to fight (being armed only with a stick), she genuinely didn't hurt the guy.

He was old, gross and weird yes-but he also took her in, gave her a home and food. In his own crude way, he did care about her. He didn't want the other monsters hurting her.

Stan narrowed his eyes at Pacifica, sending out some more magic blasts at her. Pacifica was better at dodging these, and tried to bat through one with her stick. Of course, the spell dissipated once Pacifica hit it. She looked at Stan, and was surprised to see his hands shaking.

He doesn't want to fight?

Because he doesn't want to hurt me…

Then she got an idea.

"Hey, Old Goat!" She shouted. "I…I spare you!" Stan gritted his teeth and sent out some more blasts at Pacifica. There weren't as many this time, though. Pacifica jumped to the side, rolling on the ground.

"I spare you!" She shouted again, not giving up.

"What are you doing?!" Stan demanded, sending more blasts at her. Pacifica could see his hesitation, though.

I'm beginning to get to him.

"COME ON!" The goat-like man started to pant. "FIGHT ME!"

"NO!" Pacifica shouted back. "I'm a Northwest! We Northwests don't get our hands dirty!"

"What…what are you trying to prove?" Stan's façade started to slip. He sent some more blasts at Pacifica, but this time, none of them got close to hitting her. "Come on." The goat man looked at her. "Fight."

"No way." Pacifica narrowed her eyes at him. "Look, I don't how things work in this weirdo monster world, but I'm not fighting you. I might like, break a nail." She put her hands on her hips, and Stan sighed.

"I know you want to go home but just…just go upstairs."

"I'm not going anywhere except out of here." Pacifica said haughtily. "I have parents back on the surface world, and they're probably worried sick about me! I have to get home." Stan looked at her, studying the little girl like she'd grown another head.

"So you're determined to leave, yet you won't fight."

"Not a chance." Pacifica answered firmly. She started to say that she could just bribe her way out of a fight, but stopped when she remembered that she didn't have any money with her.

"And there's nothing I can say to change your mind, huh?" Stan asked, sounding utterly tired and defeated. Pacifica shook her head. For a moment, there was nothing but quiet.

"How old are you?" Stan asked suddenly.

"Huh?" Pacifica said in surprise for a second, then caught herself. "I'm twelve." To her surprise, grief filled the old goat's face.

"You're the same age as the kids. Of course, they were younger than you when…"

"When what?!" Pacifica snapped, suddenly losing patience. Stan ignored her, shaking his head.

"Pity. I know they would've liked having you around, especially Mabel. Heh." He smiled sadly. "She'd have gone on and on about having a sister with that big smile on her face."

Stan really cared about them, that was obvious. But from the way he was talking about them…there was something about this 'Dipper and Mabel'.

"Alright." Stan said finally, looking at Pacifica again. "Guess I really can't talk you out of this, huh?" He turned, looking at the exit to the ruins. "If you wanna leave the ruins, I won't stop you. But…don't come back."

She wasn't planning on coming back anyway, but for some reason she couldn't explain, those words made Pacifica's heart sink. Stan reached over, mussing her hair.

"Hey!"

"You've got spirit, kid." He smiled sadly. "I think you'll do okay. Take care of yourself, okay?" And with that, he turned and left, not saying another word.

Pacifica sighed, clenching her hands into fists.

Don't worry, Mom and Dad. I'm coming home.

And with that, she pushed the doors open, taking her first real steps into the underground, to face whatever this world threw at her.

A/N: And so the main story finally begins! Pacifica's left the ruins, now what's next? Stay tuned to find out-and review! Reviews make me write faster!