They ended up a few steps away from the Shack. Soos managed to see them on their way and tagged along after finding out what happened. Dipper picked up a Stan bobblehead from the ground and Mabel guided Stan, who changed into his normal clothes, as they walked towards it. There, Waddles waited for them and accepted petting from Dot.
"Hey there, little guy."
Yakko tried to open the door, but it was stuck. He used his mallet to break down the door, then ran inside with Wakko and Dot. They rummaged through the remains of the Shack while Dipper followed. Mabel held Stan's hand and went inside with Ford, Soos, and Waddles.
"Hey," said Stan, "this is a real nice place you got here."
"It's your place, Grunkle Stan," said Dipper.
"Found anything?" said Wakko.
"Nope," said Dot, "nothin's good enough!"
"Don't you remember?" said Mabel. "Even a little?"
"Nope," said Stan, sitting in his chair. "But this chair hugs my butt like it remembers."
He sighed happily.
"Hey, why the long faces? You guys look like it's someone's funeral."
"Technically," said Dot, "it's yours. Ya got amnesia, hon."
She patted his back.
"That explains why I can't remember anything. Hey, who's that big guy crying in the corner?"
Wakko comforted Soos, who looked away in tears.
"Back to work, sibs!" said Yakko. "Stan's mind isn't gonna wait forever!"
"What's the point?" said Dipper. "Grunkle Stan's not himself anymore."
"There's gotta be somethin' we can do to jog his memory!" he shouted back.
"There isn't," said Ford. "I'm sorry, Stan's gone."
"How about this?" said Dot, taking out Mabel's scrapbook.
"Oh my gosh," said Mabel. "Dot, you're a genius! This has to work!"
She ran up to Stan and sat by him, more determined than ever to bring him back.
"Here's the first day we came to Gravity Falls, Grunkle Stan. And here's a macaroni interpretation of my emotions."
She flipped through the pages, the Warners hoping it solved the problem. They gathered around Stan with Dipper, Soos, and Ford.
"Come on," said Yakko, filled with anticipation, "come on..."
"That time we went fishing?" said Dipper. "That Summerween we spent together? Don't you remember anything?"
"I'm sorry. I don't know what this is or who you are or- gah!"
Waddles jumped on him. He stood up and took the pig off his chest.
"Quit it, Waddles! I'm trying to remember my life story!"
"Hold on a sec!" Dot shouted, immediately catching what they needed.
She calmed herself down and cleared her throat.
"Sorry. Can ya say that again, sweetie?"
"I said get Waddles off of me."
Wakko giggled as Waddles repeatedly licked Stan's face.
"It's working!" said Ford. "Keep reading!"
"Uhhhhhhh...I think I have a better idea," said Yakko, wiggling his eyebrows.
He jumped on Stan.
"Hey, Stan? Remember when we first met?"
"Remember when we drove ya crazy?" said Wakko, joining in.
Dot completed the routine.
"And remember when we gave ya big kisses like this?"
They leaned in and kissed his face. Stan dropped them, spitting on the ground.
"Why won't those nasty Warner kids leave me alone?"
Yakko and Wakko laughed and high-fived each other.
"Aw," said Dot, making puppy-dog eyes, "but I thought ya loved us!"
Yakko and Wakko joined her, then Yakko played it cool again.
"Come on, admit it."
He put his hand on Stan's shoulder.
"Alright, alright, I give in."
"Atta boy, Stanley!" said Dot.
"Skip to my page!" said Soos. "He needs to remember our boss-employee relationship."
"Hey!" said Stan. "Just 'cause I have amnesia, don't go tryin' to give yourself a raise, Soos."
He walked towards his family and sat down next to Mabel while the Warners perched themselves on top of the sofa.
"Ok, ok," said Mabel. "'Day two. Grunkle Stan smells weird but we're starting to bond. He told us a lot about being a business man in the '80s and seemed happy when we pretended to listen. He also gave me a grappling hook which everyone is impressed by. And in more important news, I met some neighborhood hotties.'"
"Yeah, yeah, that's great," said Yakko, "but ya gotta admit I'm the hottest."
"Stop hoggin' up all the attention!" said Dot, playfully elbowing Yakko. "Now get to the part where we come in!"
They all laughed as Mabel continued to read through her scrapbook. Once it was finished, Stan's full memory returned. Mabel, feeling nothing but joy, picked up the Warners, hugged them, and spun them around.
"You did it! You brought his memory back! ThankyouthankyouthankyouthankyouTHANKYOU!"
"Well," said Yakko, "to be fair, Waddles started it. Also, you're choking us."
"Sorry," said Mabel, quickly putting the Warners down.
After Weirdmageddon was over, the Warners stayed for a little longer to help the citizens of Gravity Falls clean up the leftover weirdness.
"None of us really understand what just happened and none of us want to," said Mayor Tyler. "That's why I'm passing the Never Mind All That Act. If anyone goes asking around about the 'events' of the last few days, what do we say?"
"Never mind all that!" the crowd cheered.
"And if you break the rules," said Blubs, "we're gonna zap you."
"Zap!" said Durland, waving his taser. "Zap! We're mad with power!"
They dropped their tasers and grabbed each others' faces.
"And love."
"Joke's on them," said Yakko, who had his cell phone in his hand. "It's already viral."
"Nobody needs to know," said Dot, winking at the readers.
The Northwests also lost their fortune by Preston putting all his savings in weirdness bonds. This meant Pacifica would have only one pony. McGucket, on the other hand, became rich and made millions overnight by submitting his patents to the US government. But if there was one thing that made the Warners extend their stay the most, it was Dipper and Mabel's birthday party. The whole town of Gravity Falls went to the Mystery Shack to celebrate this joyous occasion and cheered after singing "Happy Birthday".
"I can't believe you all got together just to throw a party for us," said Mabel.
"Told ya we wouldn't miss it," said Dot.
"Yeah," said Wakko, "we wouldn't miss it for the world!"
"After all the Pines family has done for the town," said Mayor Tyler, "it's the least we could do. Not to mention the Warners helped plan everything. You've helped everyone here."
"Thanks to y'all savin' us," said Gideon, "I'm gonna learn to open my heart to kindness. No more evil-doin'. From now on, I'm gonna try to be Li'l Gideon, regular ol' kid."
"Meh," said Yakko, "I think 'Gideon the Pig Man' has a better ring to it."
Wakko, Dot, Dipper, and Mabel laughed.
"Dude!" said Soos. "Make a wish, dawg."
"You know," said Dipper, "on my first day here, if you had asked me what I wanted, I would have said, 'adventure, mystery, true friends'. But looking here at all of you I realize that every wish came true."
He chuckled.
"I have everything I wanted."
"If I had only one wish it would be to shrink all of you with the shrink ray and bring you home with us in my pocket," said Mabel, earning a giggle from the Warners. "But since that's impossible..."
She looked at Ford.
"Is that impossible?"
Ford moved his hand as if to say "maybe".
"Since that's probably impossible, my only wish is for everyone to sign my scrapbook. I'll never forget you guys. Wait."
She smashed the memory gun.
"Now I'll never forget you guys."
Dipper and Mabel blew out the candles. Wendy ran over and hugged them.
"I now officially declare you technically teenagers. Welcome to angst and acne forever."
She and Robbie, Tambry, Thompson, Lee and Nate chanted together.
"One of us! One of us!"
Yakko shrugged them off.
"Don't listen to them. Wanna know the truth? You'll end up like me and puberty'll hit you like a bus. Pretty soon, you'll have people swooning over ya 24/7!"
"Hellooooooooo nurses!" he and Wakko shouted.
"Boys," said Dot, rolling her eyes. "Go fig."
"So how do you feel?" said Soos.
"Same-y," said Mabel, "but different-y."
Meanwhile, Pacifica wanted to keep things going.
"Hey, you two. When are you gonna open your presents already? I broke a nail wrapping them."
Dipper and Mabel opened their presents, which included $1,000 checks and golf clubs from Pacifica, a Gravity Falls snowglobe from Tyler, custom-made axes from the Corduroys, and Sev'ral Timez and BABBA CDs from Candy and Grenda. The last presents remaining were from the Warners.
"This isn't gonna be a gag, is it?" said Dipper.
"Nah," said Yakko. "Come on, open up!"
They opened them up and found a certificate for each of them. Dipper and Mabel read them out loud.
"'This certificate is bestowed upon the Pines Twins, Dipper and Mabel Pines'..."
"'For being some of the zaniest people on the planet'..."
"'And are hereby pronounced from this day forward'..."
"'Honorary Warners'."
To make sure they were verified, the Warners' signatures were below the text.
"I'm touched," said Dipper, smiling at the Warners.
Mabel threw her arms around the Warners.
"This is the best birthday ever!"
"Glad to hear it," said Yakko.
"Well," said Dot, "that's that. Come on, play some music!"
Pop/rock music blared over the speakers as everybody began to dance. After a while, however, the music stopped as Stan made an announcement.
"Everyone. I have an announcement to make. Me and my...heh...nerdy bro over here have some catchin' up to do. We're gonna be away for a while. That's why I'm shutting down the Mystery Shack for good."
The crowd gasped and murmured, the Warners making random noises to blend in.
"You shut down your mouth for good!" said Soos, pushing his way through to get to Stan. "I'm sorry, Mr. Pines. It's just that this shack is the most magical place on Earth. Sure, the attractions are all fake, but dreams aren't fake! Like, this mermaid. It's not just a dead fish butt sewn to a monkey carcass. It's a marvelous creature that makes us believe that anything is possible. You shut down this shack, and you shut down our dreams! At least...my dreams."
"How profound," said Dot.
"I'm sorry, Soos. It's just, there's no one around to run it. At least, there wouldn't be if I hadn't just found the perfect replacement."
He put his fez on Soos' head.
"Ladies and gentleman, the Mystery Shack is under new management."
The crowd cheered.
"Go Soos!" said Wakko.
"You...you mean it, Mr. Mystery?" said Soos.
"You're Mr. Mystery now, Soos. Try not to burn the place down."
Abuelita already started moving in as the Warners tackled Soos in a hug.
"Congrats, man!" said Yakko.
"What's it like being in charge?" Dot asked.
"I dunno, dudes. I'll have to get used to it first."
The music started up once more.
"Hey," said Yakko, extending his arm for Mabel's, "wanna dance?"
"I thought you'd never ask."
They linked arms and walked back to their previous spots, dancing happily together.