Dipper's POV

(y/n) and I were at the gift shop chatting and playing random games that came to mind. At the moment, we were watching some zombie movie titled Nearly Almost Dead But Not Quite. It was a ridiculous and stupid movie.

Female Lead: What do we do, Chadley?!? I thought they were dead!!!

Male Lead: Far worse, Trixandra!!! They're... Nearly Almost Dead But Not Quite!!!

Female Lead: *screams*

Dipper: Man, these movies are a lot less scary when you've actually fought real zombies.

You: And who's responsible for that?

Dipper: *chuckles awkwardly*

You: *roll your eyes with a smile before looking back at the tv* They're slow, just power walk away from them!!!

Dipper: How much you wanna bet that guy dies first?

Male Lead: *gets eaten as he yells with very poor voice acting* Ah, my face is being eaten a lot!

You and Dipper: ... *burst out laughing*

You: Chadley ain't pretty no more!

Dipper: *laughs a bit more* Yeah. *thinks for a bit* ... So uh... speaking of which... You aren't seeing anyone at the moment, right...?

You: Of course I am. *grab a nearby plush toy* Meet my new boyfriend.

Dipper: *laughs a bit awkwardly* Right, right. *rubs the back of his head nervously* So, hoof, so you know I was wondering if maybe you... wanted to... I-I mean, if you and me would ever... I mean, if maybe you...

You: ...

Dipper: ... *looks away in defeat* wanted to join me and Mabel on this mystery hunt tomorrow...? Conspiracy stuff and all that, that's all...

You: Dude, that's not a question. Of course I'll go! Mystery hunt with friends! *look at the tv* Yo, Chadley, watch out!!! *laugh*

Dipper: *laughs awkwardly, a bit sad* Yep, cuz that's all we are... *takes out a note* That's all I'll ever be... *crumbles up the note and puts it inside his vest* ... friends...

I had to admit it to myself, (y/n) would never feel the same way I felt towards her... Not in a million years...

The next day, Mabel, Soos, and I were in the forest ready for the adventure, but I was still a bit gloomy from yesterday...

Dipper: *clanks the lantern* Thank you all for coming.

Mabel: Hey, when there's a mystery, you can count on your sister-y!

Soos: *laughs* That's amazing rhyme! When you want to good, would- would you need a Soos you- oh, gosh, I don't know...

Dipper: We're here to solve the number one mystery in Gravity Falls. *takes out his journal* Who wrote this journal? Thirty years ago, the author vanished without a trace. *shines the dark light at a page* But according to this new clue, we may have found his secret hiding place! We find that author, we learn the answers to everything! We just need to figure out a way to get down there.

???: Chop it down, dudes! *stops her bike*

Mabel: (y/n)!!! What took you so long?!?

You: *turn a bit pale* !!! Uh- family stuff. *chuckle awkwardly*

Mabel: We're just glad you're here!!!

Dipper: *smiles sheepishly* Y-Yeah...!

You: Happy to be here! *walk over to greet Soos*

Mabel: Uh oh~! Inviting (y/n) on our mission~? Me thinks there's romance afoot!!!

Dipper: (y/n) always comes to our missions. And besides, I've thought this through and I'm over her. I've looked at it from every angle and that thing was going nowhere. I know what matters to me now and it's finding the author of this journal.

Mabel: You're over (y/n)?!? Allow me to out on my skepticals! Oop!!! *uses her fingers to form circles around her eyes*

Dipper: I've moved on, Mabel, you should too. *goes with you*

You: Hey, is it just me or does that branch kinda look like a lever?

Dipper: Huh, yeah. But how but how do we get up there...?

You: *climb up with ease before pushing down the lever* Done!

Dipper: *starring at you, a bit of blush on his cheeks* ...

Mabel: Whoa, how'd you do that?!?

You: I've had practice.

Just then, the tree began rumbling knocking her off the tree, but Soos was able to catch her before she hit the ground.

Dipper: Alright, guys, this is it! Remember: whatever  happens down there, we tell no one.

Mabel: *gives him a serious thumbs up*

Soos: *turns his cap around*

You: *zip your mouth with your finger*

Dipper: Now who wants to go first?

We go into the tree which had more stairs. At the end was a room, like some sort of bunker. It was strange yet interesting.

All: Woah...!!!

You: This is so wicked cool...!!!

Dipper: It's like a fallout shelter...!!! Must've belonged to the author...!!!

All: *wonder around*

Mabel: *sticks her head in a barrel, then takes it out revealing a face full of caterpillars making her laugh* My face feels fuzzy!!!

You: Eugh...

Dipper: It's like he was preparing for a disaster.

You: Yeah, but what kind of disaster would need supplies for over sixty years?

Soos: *opens a cabinet revealing many weapons* Oh my gosh... *takes a smez dispenser* A smez dispenser!!! I remember these things!!! What's that? Yes, I will have some of your old-timey face food!!! *eats a piece of its candy* Ew, dusty! *eats another piece*

You: Uh... guys...? *pick up an empty opened can* I think this can was opened recently...

Soos: The author might still be alive!!! Down here!!!

You: Wait a minute... *walk over to a Gravity Falls map and rip it out revealing a passageway* I think I know where he might've gone.

We all crawl through the passageway which lead to a strange room with even stranger symbols.

You: Holy hell, this place is like futuristic...!!!

Soos: Yeah, this room is way creepy!

Mabel: Not as creepy as Dipper's internet history! Heyo!!!!

I get pushed by Mabel making me land in a symbol on the floor which soon lights up, followed by the other symbols in the room and closing the door where we had come through. Shortly after, blocks start to come out off the wall and try to squish us.

Mabel: Wall things!!! Crazy wall things happening right now!!!

You: You don't say, Sherlock!!!

You, Mabel, and Soos: *try to push some more blocks*

Mabel: Dipper, what do we do?!?

Dipper: Ah.., uh... *searching the journal and murmuring to himself* C'mon, c'mon, c'mon...!!! *uses the dark light, then shows you the page* Find these four symbols!!! Quick, everybody step on one!!!

Soos: *presses one* One!!!

You: *punch another* Two!!!

Mabel: *slaps another* Three!!!

Dipper: *sees the last symbol and climbs some blocks, then presses it* Four!!!

A door opens and we run for it. It the process, my vest got stuck on the gate, and I had to leave it behind to escape.

You: Whoa, that was insane!!! *as you playfully punch Dipper* You ruled back there, dude!!!

Dipper: Hehe, thanks!

You: *go to the other side followed by Soos* Get a load of this crazy surveillance room!!!

Soos: Check it out, dudes! *takes two science vessels and places them together in front of his eyes making them seem hilarious as he makes funny noises*

You: Soos, Soos, ... that is hilarious.

Mabel: *walks over to you* Hey Dipper, *offers him his vest*

Dipper: Oh, thanks. *puts it on*

Mabel: *waves the note around* Look what else I got~!

Dipper: *gasp* Give me that! *snatches the note and sticks it in his vest*

Mabel: *shriek* I know it!!! You're not over (y/n) at all!!! *gasp* And you're gonna tell her today?!?

Dipper: No, I changed my mind. It's a bad idea. I'd just embarrass myself and then I'd be another guy she hates! Like Bill!

Mabel: Dipper, those were totally different circumstances!!! Just tell her already!!! One way or another, you're gonna feel better afterwards!!!

Dipper: Look, Mabel, I can't tell her no matter how much I want to!!! Just drop it, ok?!?

You: *from a far* Dude, Pine Hat, you got to check out this weird metal closet! *enter the closet and speak with a robotic voice* I am a robot, I have a metal closet.

Dipper: Coming! *whispers to Mabel* This never happened! *goes with you*

Mabel: *smirks before going to Dipper*

Mabel: Brother, whatever happens, I just want you to know: ... this is for your own good.

Dipper: What?

Mabel: *pushes him into the closet and locks the door*

Dipper: What the-?!?

You: This isn't what I meant?

Dipper: I- uh- *starts punching the door* Mabel, let us out!!!

Mabel: Oh, I'll let you out~! As soon as you tell (y/n) that thing you've wanting to tell her!!! You'll thank me for this later!

You: What is she talking about?

Dipper: Uh, Mabel's been eating raw sugar packets again...!

Mabel: That's besides the point!!!

Dipper: *banging the door* Let me out right now!!!

You: Ugh, where are the lights?

She noticed a small string in the middle and pulled it, turning on some shower. After that, some steam dried us, and a door opened. Both confused, we looked around.

Dipper: Whoa... a hidden lab...!

You: Maybe the author did experiments down here...! *look around, seeing some strange tunnels* What do you think dug all these tunnels...?

Dipper: Let's hope we don't find out...

Just then, a loud shriek game from the varios tunnels. It wasn't human like, and that made me feel more uneasy... We looked towards a dark area that was close to us. The noises... were coming from there...!!!

You and Dipper: AHHHH!!!! *run back to the door, punching it*

Dipper: Mabel, open up!!! For real!!! There's a monster in here!!!

Mabel: Hah, nice try!!! The only monsters are your own inner demons, Dipper!!!

Soos: That is so wise!

You: Pine Hat, just say whatever they want you to say so they'll let us out of here!!!

Mabel: C'mon, Dipper!!! Now's the time, bro!!!

Dipper: (y/n), I-... I-... I'm gonna find another way out!!! *starts dragging you away*

You: Wait, what?!?

Dipper: *running while holding your wrist*

You: Where are we going?!?

We ran for a bit, eventually reaching a dead end. We heard the monster near us and turned around, both of us terrified. We saw the shadow of the monster running, but it was soon talked by something, or someone, else. After a bit, we were greeted by an unfamiliar man.

???: Well, I just ripped out a monster's tongue. *throws it on the ground*

You: Oh I'm gonna puke.

Dipper: It's- it's you...!!!

???: Hurry now, I scared it off but it'll regenerate! *runs off*

You and Dipper: *follow him*

???: *now walking* I wasn't expecting guests. I've been down here for a very long time. Years. Weeks maybe. I miss orange juice.

Dipper: You don't understand, you're the guy I've been looking for!!!

You: He's the guy?!?

Dipper: (y/n), he's the guy!!!

???: The guy?

Dipper: I got like a jillion questions!!! Why did you write the journals?!? Who was after you?!? Why did you build this bunker?!?

???: *chuckles* My boy, I'd love to discuss this in time, but we have more pressing matters. It's one of my experiments: a shapeshifter. Able to take the form of anyone or anything it sees. It broke free from a cage of solid steel! I've gone half crazy trying to catch the creature alone, but now you're here! Will you help me catch it?

Dipper: *smiles*

After a bit more of walking...

???: Come in, come in! I apologize for the state of things. I don't get many non-mold people visitors.

You: *looking around in suspicion*

???: Now the beast must have some weakness we can exploit. I used to have my research on him, but alas I lost my journals so many years ago...

You: Did you say journals?

Dipper: Dude, I found one of them!!! It's how I tracked you down here!!! *takes the journal out of his vest*

???: What...? Could it be...?!? Heh, my boy, I can't express my gratitude! *turns around, looking through the journal* Oh yes... after all these years... Yes... it's all here...

You: *find some things on the ground* (Huh...)

Dipper: (y/n), isn't it amazing we're actually meeting the real author...?!?

You: *pick up a can* !!!!! *show Dipper then can, whispering* Look!!!

Dipper: *sees the person in the can is the same one with the journal now* ...

You and Dipper: *stand up*

Dipper: *walks over to the guy* Uh, you know what? We should probably get going... Can I have my journal back...?

???: *turns his head completely back* You're not going anywhere...!!! *climbs up, spider legs coming out of his back before roaring loudly*

You and Dipper: AHHHHHH!!!!!

???: *transforms into a strange monster* How do you like my true form?!? Go on, admit it, you like it!

Dipper: You!!! What did you do to the real author?!?

Monster: You'll never find him, that six fingered nerd hasn't been himself in 30 years. But I do thank you for bringing his journal. He used to write it while I was in my cage! So many wonderful forms to take...! *turns into a Gremloblin, then a gnome, then the Hide-Behind while laughing*

Dipper: We've got to get that journal back!

You: Hey body snatcher!!! *take the and throw it at the monster*

Monster: *turns into a a huge mutant frog, blocking the can before attacking you with its large frog tongue*

You: !!! *grab a piece of metal and protect yourself, the monster's tongue sticking to it, then let it go, the metal hitting its face*

Monster: *drops the journal as it grunts in pain*

Dipper: *quickly grabs his journal* RUN RUN RUN!

You and Dipper: *start running away*

Monster: *turns into multiple things before turning into some terrifying rolling insect thing*

You and Dipper: *reach to tunnels, hiding in one*

Dipper: *throws his flashlight in the other before hiding with you*

Monster: *follows the flashlight*

You and Dipper: *start running away before crashing into someone*  

Soos: Aw, dudes!!!

Mabel: Dipper, (y/n)!!!

Dipper: Mabel, Soos!!! Wait... *puts an arm in front of you as you both back away* How we know you're not the shape shifter...?

Soos: *gasp* Maybe I am!!! Mabel, inspect my shape!!!

Mabel: *pokes Soos's stomach* Poke!

Soos: *laughs* Do that again!!!

Mabel: *pokes Soos again* Poke!

Soos: *laughs* Even better the second time!!!

Dipper: It's definitely them. *gasp* Oh my gosh, (y/n), you're bleeding!!!

You: Huh? Oh, don't worry, it's just a scratch.

Mabel: What happened?!?

You: We got attacked by the shape-shifter! He broke out of his cage, pretended to be the author, and wants Dipper's journal.

Dipper: Imagine if he escapes into town!!! He can transform into anything!!! We can never trust anyone ever again!!!

Mabel: What do we do?!?

You: Well, he took us into his home, tricked us, and tried to destroy us. I say we return the favor.

We made a plan. After we got into our positions, the shape-shifter thing started calling me. Mabel and I were bate. Not the best plan, but we didn't have much to work with.

Mabel: Oh boy, Dipper, that book sure is filled with some great monsters!!!

Shape-Shifter: There you are!!! Ooh, and a new one!!! *turns into Mabel* Should I be one? *turns into Dipper* Or the other? How about both? *turns into a terrifying mix of both twins and a spider, then roars*

Dipper and Mabel: AHHHHH!!! *run to where you and the others are*

Dipper: Guys, he's coming, he's coming!!! Now now now now!!!

You and Soos: *start to turn the valve*

Soos: It's not working, dude!!!

Shape-Shifter: *uses its tongue to grab Dipper's journal*

Dipper: Hey, let go!!!

You: *help Dipper* You leave him alone!!!

Shape-Shifter: *pulls the journal along with you to it*

Dipper: (y/n)!!!

You: *grab a nearby cooper tube and are about to hit him*

The water started to come out hitting (y/n) and the shape-shifter. It started to fill up the whole place. We tried to outrun it, but we were taken by it.

As the water cleared, I looked around; there was no sign of (y/n). I desperately began to look around, imagining the worse. I found her lying on the ground, motionless.

Oh no...

Dipper: *runs over* (y/n)!!! No no no no no!!! Can you hear me?!? *shakes you softly* Oh, please be ok, please be ok!!!

You: ...

Dipper: *gasp* Oh no, oh no, this is all my fault!!! If I had told you when we were in the closet we wouldn't be in this mess!!! But I was too scared and now you could be hurt or worse and I never even got a chance to tell you I'm like... in love with you, (y/n)!!! ...

Voice From Behind: ... Uh... Pine Hat...?

Dipper: *turns around to see you holding the journal* Wh-wha- wh- (y/n)?!? Wait, then who's-?!?

The Shape-Shifter transformed itself as (y/n) before going and attacking the real one. They started to fight over the journal and eventually I lost track who was the real one and who was the fake. But I had to do something. I grabbed the same copper tube. Now came the hard part...

You 1: Pine Hat, hit her with the axe!!!

You 2: Don't listen to her, Pine Hat!!!

You 1: She's the Shape-Shifter!!!

Dipper: Uh-I-I-I don't know who's who?!? Give me a sign!!!

You 2: *winks*

You 1: *zips her mouth with her finger*

I knew who the real (y/n) was now. I hit the Shape-Shifter harshly with the copper tube, making it let some green ooze escape. As he transforms back to his normal form, (y/n) and I quickly pushed the creature into the tube which closed at the right moment. I was surprised at first, but then I realized it was Soos and Mabel. The creature stared to transform into different things trying escape, but gave up and was covered by the ice smoke.

Soos: Let's get out of here, dudes.

Shape-Shifter: *laughs, then appears out of the smoke making you all gasp* You think you're so clever, don't you, Dipper? But you have no idea what you're up against. You will never find the author! If you keep digging, you'll meet a faith worse than you can imagine. And this will be the last form you'll ever take!!! *transforms into Dipper screaming, then freezes*

Dipper: *stares at the now icy statue of "himself" then at his reflection* ...

Soos: *chuckles* Good luck sleeping tonight!

We left the place. When outside, the tree raises itself as if to be like any normal tree.

Soos: Dude, I think I'm kind of adventured out for a while. My face hurts from doing this all day! *does a scared face*

Mabel: *giggles* Yeah. But you gotta admit, we're all total heroes!!!

Soos: Hey, who wants to get some hero's breakfast?

Mabel: *cheers before leaving with Soos*

You: ...

Dipper: ...look, (y/n), about earlier... In the heat of the moment, I might've said some dumb things and can't we just pretend none of that ever happened...? Please...?

Even though I had said this, a part of me still hoped that maybe, just maybe, she felt the same way, or something... anything, really... I nervously looked up to meet her gaze.

... but something wasn't right... I didn't know if it was just my mind playing tricks, or just the angle, or the light, but her eyes looked... different... They were a bit more yellow, and her pupils were a bit longer than normal.

What the...?

You: It's ok, Pine Hat... But... *sigh* I'm sorry, I just don't feel that way about you...

Dipper: ...

You: But we can still be friends, right...?

Dipper: ... y-yeah, yeah, of c-course...

You: *gently pull down his hat with a gentle smile before walking away*

I expected this, I did... I knew she'd never feel the same...

But hearing it now...

Dipper: ... *sits on a nearby log and hugs his legs which are now pressed against his chest, tears starting to stream down his cheeks*

Is worse that I ever expected it to be...

???'s POV

That's it, Pinetree...

Suffer like I did...

PLS DONT KILL MEH!

Also, I apologize for not posting this last Sunday, I was pretty busy.

Thanks for reading!!! 'Till next time!!!

❤️❤️❤️