Danny had spent less than 28 minutes with these kids(more than that if you counted the dream-which he didn't), yet he already could tell they were going to be fast friends. Dipper, despite his awful name, was resourceful and smart, answering almost every question Danny had. It was really nice, not getting weird looks for being friends with the school goth or being the son of the ghost hunters in town. He was just Danny Fenton to Dipper. 

Then there was Mabel. Glittery, fun, optimistic, Mabel. He could barely believe this girl was a teen. She was too filled with happiness to be compared to any teen you'd find in a high school, but really, that was the charm. She wasn't your average girl obsessed with Britney Spears or a even a girl like Sam or Jaz. She was just Mabel. 

So, after downing some seriously good Mabel Juice(he'd have to ask her for the recipe), Dipper asked Danny a few questions.

"Danny, you're from 2008, right?"

"Yep." 

Dipper scribbled that down. "And did you dream about meeting us last night?"

Danny nodded. "Mhm. I don't know how you pulled my out of the Unknown, but you guys have to have been a catalyst for something."

Mabel asked the next question. "How'd you end up in the Unknown?"

He shrugged. "Ghost shenanigans." Honestly, it wasn't a lie. If he started speaking of his other adventures, they'd think he was insane.

"Lastly, what was that thing last night? The singing creature?" Dipper questioned.

"Some call it the Beast. In the Unknown, the don't talk about him much at all. All I know is how to avoid him, and that running into him is bad news. No one has ever seen its face, or fought it. It just wanders around, hoping to entrap its next victim." 

"Lovely." Dipper commented dryly. "Is it a demon? A wendigo? Perhaps a cryptid or mythical creature?" He was furiously writing something in his notebook, often looking between Danny and the papers.

Danny shrugged. He really, truly didn't know. The Unknown was creepy enough on its on, with its black turtles and pumpkin fields. Interacting with the locals was usually low on his list, and interacting with the Beast was a no-go. 

Why?

He couldn't become a ghost in the Unknown. Something he could trigger so easily stopped working whenever he entered the strange realm. He felt like he was always the Phantom, but being made of flesh and blood definitely proved that feeling false. Fighting it would be with all his human strength, and he had practically none.

"I can't say."

Mabel patted him on the shoulder. "Its okay! Mrs. Frinellie says that not knowing means you get to experience expanding your mind all on your own."

"Who's Mrs. Frinellie?"

"My social studies teacher. She drives a purple motorcycle!"

Dipper coughed. "Biased."

"What was that?" Mabel asked her twin. She may have not caught it, but Danny certainly did. He'd have to ask later, if he had time.

"Nothing. Just a cough." He lied. "But anyways, while you're here, want a tour? I can promise things here aren't gonna be boring."

Mabel nodded, clapping her hands together. "Oh I know! We can bring him to the Post-Weirdmageddon Museum!"

"No." Dipper vetoed. "How do you think any sane person would react to a place like that? Heck, Toby framed a picture of himself in Weirdmaggedon gear. No one wants to see that." Dipper reasoned, blanching. 

Mabel shrugged, sticking a wad of glitter slime on Dipper's hat. "Then maybe the arcade?"

"Pinball machine." He reminded her. 

The siblings went back and forth, with Mabel presenting more and more weird ideas and Dipper shooting it down with weirder phrases ranging from "Narcissistic unicorns" to "Gobblewonker"

Then again, thinking back on the things that went down in Amity...this wasn't actually that bad. Eventually, the siblings decided on something.

"How about we just show you our friends? We can probably hang out at Wendy's place." Dipper advised.

"Oooh yeah! Or maybe we can bring him to Robbie's house, because, y'know, Danny's a ghost, they have a graveyard..." Mabel hinted, elbowing her brother with a metallic grin. 

"No way. Me and other ghosts...most hate my guts. Its probably for the best if we stay away from haunted things, unless you want to see a ghost smack-down that I'm not equipped to handle."

Mabel slumped. "Aww man, I was hoping you weren't gonna say that! But okay Dan-Dan, we'll stay away."

"Cool. I'll call up Wendy and let her know. Danny, want us to keep the ghost thing private or no?" He asked, getting up from the floor. 

Danny followed him to his feet. "Yeah, probably. I know you said people of this town are used to weird things, but I'd rather keep it to myself for now."

Dipper nodded and a glob of slime slid off his hat onto his shirt. "I respec-Augh, Mabel!"

"You've just been SLIMED!" She laughed manically and slapped a glob of slime on Danny's head. "Double SLIME!" 

Danny laughed. "You underestimate me." Turning intangible, the slime fell right through and plopped satisfyingly on the ground. 

"Woah!" She scooped up the slime. "Its really cold."

Dipper shook his head and rolled his eyes. "You two try not to destroy the shack. I'm calling Wendy." He looked down at the glittery pink trail down his shirt. "And putting on a new shirt."

Danny waved casually as Dipper left the room. As soon as the door closed, Mabel grabbed Danny's arm and dragged him over to her bed. "Do you like scrapbooks?"

"I don't really know. I don't look at scrapbooks too often."

She gasped and squished his cheeks. "You've never lived!" Scrambling down from the bed, she dragged a glittery and ribboned book out. She'd obviously put a lot of work into it, the book bursting with too many papers. 

"This is us last year. Look how much of a dweeb Dipper is!" She smiled. "And I still have that sweater. Its really really soft." 

Danny peered down at the two. They looked so young, and so innocent. Dipper had the perfect face of boredom on and Mabel was grinning the same as she did now. If he wasn't told that was a year ago, he could've believed it was from only a few weeks in the past.

"This is when Dipper became really paranoid that Norman was a zombie. Here, look at him saying his arm spelled "Beware"."

"Oooh, Summerween! That was fun." 

They flipped through the book, Mabel chattering away about each of her adventures. Danny guessed she rarely got to do this, based off of her energy. Maybe not everyone knew about the weirdness they were accustomed to and she couldn't show it to them. If so, he related to her a lot more than she knew. 

"And here's Pacifica accepting a ceremonial gift to represent our friendship!"

"That's a taco covered in lint." Danny pointed out. 

"Exactly!" She exclaimed as Dipper came into the room. 

"Good news, everyone wants to meet you. Bad news, they want to test how cool he is."

"Why is that a problem?" Mabel inquired, tossing a wad of gum in her mouth. "Danny seems pretty cool to me."

"No, you don't understand. They only became really friendly with us after the Convenience Store and Weirdmaggedon, which means-" Dipper griped. 

"-They're gonna make him do something dangerous?" Mabel filled in.

"Not only that, they're expecting him to do something badass as a human."

Danny shrugged. "Just became I'm not fully gonna transform doesn't mean I can't handle myself."

"You sure?"

"Yeah. I say, tell you friends to bring it on!" Danny smiled. "Show me the full weirdness of...Gravity Lake?"

"Gravity Falls, but close enough!" Mabel gave him a highfive. "Let's do this thing!"

And then the doorbell rang.