Mabel is writing in the living room, "Dear Mom and Dad, we've been in Gravity Falls for a few months and so much has happened! Just yesterday gravity reversed itself, almost destroying the universe and totally wrecking the whole town! But the coolest part of the summer was when Grunkle Stan's twin brother came out of this portal-thingy. Now we have two grunkles for the price of one! And they are adorable together!" She stops writing, takes the picture of Stan and Ford holding hands she has drawn on the letter and folds them together; high voice, "We love each other so much!" She makes kissing noises.

Will just laughs, watching her write.

Dipper, runs in with a box, "Mabel! You'll never guess what I found at the store today!"

"Dogs! Dogs with hats!" Mabel smiled.

Dipper shook his head, "No, it's my favorite fantasy-talking, level-counting, statistics and graph paper-involving game of all time:" He holds it up, "Dungeons, Dungeons, and More Dungeons! You wanna play it with me?"

"Well, I do like unicorns, and that hot elf looks promising. How do you play?" Mabel asked.

"The rules are simple." He opens the game book, "First, you roll a 38-sided die to determine the level of each player's statistical analysis poweroid. These orbs relate directly to the amount of quadrants that your team has dominion over, which is inverse to the anti-quadrants in your quadrant satchel."

Mabel smiled, "...And then we ride unicorns?"

"Yes!" Dipper smiled.

Mabel gasped.

Dipper sighed, "And no."

Mabel frowns.

"First, we make a graph," Dipper holds up graph paper.

Mabel sighs, "This is like Homework: The Game."

"Come on, Mabel, I need at least two people to play," Dipper frowned.

Mabel points at Will, "Why don't you ask Will? I'm sure he'd like to play with you."

"... uh... no thanks."

Stan walks in, "Say, is this that game that's mostly math and writing and isn't anything like the picture on the box?"

"Yes! It is! You wanna play with me, Grunkle Stan?" Dipper asked, smiling.

Stan laughed, "Ha! Look, kid, I prefer to do my dice rolling in Vegas. Besides, only a game designed by nerds would have "charisma" as a fantasy power. Heh. Check this out:" Reading from book, "When facing yon adversaries, shield thyself, under an elfin buttress."

Mabel laughed, "Haha, say it again!"

"Buttress."

Stan and Mabel laugh.

"Hey!" Dipper takes the book from Stan, "Laugh all you want. You guys just aren't smart enough to understand it." Dipper sighs.

Dipper's in the backyard with Gompers with the game set up. He rolls the dice, "Oh, nice! You rolled a seventeen!"

Gompers bleats.

Dipper sighed, "Aaannd this is sad. Maybe I should start obsessing over Wendy again."

Gompers takes the dice.

Dipper grabs it and tries to pull it out of Gompers' mouth, "Hey, give it back! Come on, Gompers, let go!" He pulls it out and falls backward, dropping the die under the porch on front of a hole, "Aw, man, my 38-sided die!" He crawls under the porch and the ground falls out from underneath him, "Whoa, what AAAAAHHHH!" He lands on the floor of the basement; looks up to see the die next to the cycloptopus, picks it up.

"Dipper! Stop!" Ford shouted.

Dipper yelped, "Great uncle Ford!"

"What did I say about coming down here? My work is far too dangerous for a single living soul to spend even one second i- wait! Is that a 38-sided die from Dungeons, Dungeons, and More Dungeons?!" Ford asked.

Will sighed, "Oh boy..."

"Yeah! Y-you know that game?" Dipper asked.

Ford smiled, "With pen and paper, shield and sword..."

"Our quest shall be our sweet reward!" Both of them laugh, as Will frowns.

Ford sighed, "This is my favorite game in the whole multiverse! I can't believe they still make it!"

"They do! And I've been looking all day for someone to play it with me!" Dipper smiled.

Will frowned, "I... I can play with you..."

"No," Dipper growled.

Will frowned, looking down.

Ford smiled, "My boy, do you know what this means? We must stop everything I've been working on at once... and PLAY!"

Mabel sighed, "Okay. We've got everything we need to watch the season finale of Duck-tective tomorrow." She holds up a box full of food with a ramp, "I even made mouth-ramps so we can pour food into our mouths without taking our eyes off the screen." She pours some food into her mouth, "Nom nom nom.

Stan, stapling a turkey head to a beaver's body, "And I recreated the main character out of some spare taxidermy parts." Imitating Duck-tective, "Quack quack. I'm the duck detective! Who stole my breadloaf?"

Mabel laughed, "Hahaha! That is so messed up! Dipper would LOVE that!"

"Heh. Yeah. Where is the little squirt anyway? I haven't seen him all afternoon," Stan sighed.

Ford, moving the dice around his fingers, "Alright. You've entered the chamber. Princess Unatainabelle beckons you. But WAIT! IT'S A TRAP!"

Dipper gasps.

"An illusion cast by Probabilitor the Annoying," Ford sighed.

Dipper grinned, "You know his weakness, right?"

Dipper and Ford, "Prime-statistical anomalies over 37 but not exceeding 51!"

Dipper rolls the dice, "Yes! Uh! In your face, you cardboard wizard!"

Ford holds up the picture of Probabilitor, "Hm. The old boy looks a bit different than he did back in my day."

"Mmm, yeah, they change the art every few years. Thankfully you missed the period when the creators of the game tried to make it 'cooler'," Dipper shivers, "Must have been dark times, those 90's."

Ford laughed, "Yeesh. Sounds like a good time to be stuck between dimensions."

"Great uncle Ford, I've been meaning to ask you: where were you before you came out of that machine, and what have you been doing down here? Are you working on something behind that curtain?" Dipper asked.

Ford sighed, "Dipper, it's best if you and the family stay away from that subject. Honestly, I'm not sure any of you could handle the real answer."

"But, but I can handle it-" Dipper frowned.

Ford shakes his head, "You don't seem to trust Will as much as you used to, from what he's told me... But I can show you something I brought back with me."

Will takes a small bag, and pulls out a black box, before opening it, "This... is an infinity sided dice."

Dipper gasp, "Woah... that's so cool. And... impossible!"

"Not everything is impossible," Will smiled.

Ford smiled, "These things are outlawed in 9,000 dimensions. You wanna know why? Look at those symbols. Infinite sides means infinite outcomes. If I rolled it, anything could happen. Our faces could melt into jelly. The world could turn into an egg. Or you could just roll an eight. Who knows. That's why I have to keep it in this protective cheap plastic case. Now, back to the game! You've got Probabilitor on the ropes."

Mabel is trying to sleep while Dipper is writing on graph paper on the floor.

Dipper laughed, "Hohoho man. And then, if I had a dragon here, and then a plus three fire mode-"

"Dipper, are you going to go to sleep?" Mabel asked, "You've been saying dork words for hours."

Dipper shook his head, "Sorry, Mabel, I got to finish this dungeon. It's going to totally stump Great uncle Ford tomorrow, I can't wait to see the look on his face."

"You're uh, spending a lot of time with old Fordsy lately, huh?" Mabel asked.

Dipper laughed, "You have no idea. I knew the author must be cool, but he's better than I imagined. And, he doesn't make fun of me all the time, like you and Grunkle Stan do."

"Give 'im time, haha! Heyooo! Nah, you got me." She lays down; to herself, "You got me."

Mabel puts on a Duck-tective sweater, "Thanks for coming over to watch tonight's Duck-tective finale, Grenda!"

"Of course! I'm so invested in the lives of these characters!" Trends smiled.

Mabel , to Stan, who comes down the stairs wearing a suit, "Hey-hey, look at you! Someone's all dressed up."

"It's a big night. I think we all remember where we were, when we learned Duck-tective was shot..." Stan frowned.

An alarm goes off.

Mabel gasped, "Viewing positions, everyone!"

Grenda, Mabel and Stan run to the living room, but stop and gasp when they see that Dipper and Ford have laid their game all over it. Will was just sitting down on the couch, watching them play.

"Ah! Graph paper!" Grenda starts stomping on it, "Kill it! Kill it!"

"Dipper, could you maybe move this to another room?" Mabel asked.

Ford frowned, "No dice! We ran out of room in the basement and we're going for a world record! Now, dice!" He rolls a 32, "32, yes! 7,000 points damage!"

Dipper laughed, "You got me!"

"Oh, why, why with this?" Stan asked, "You wanna break a record, Ford? You already got it with world's nerdiest old man."

"Hey, at least I'm not all keyed up to watch a kid's show," Ford pointed out.

Stan frowned, "I'll have you know that Duck-tective has a big mystery element! And a lot of humor that goes over kids' heads!"

"I don't get a lot of it, but I like animals in human situations," Grenda smiled.

Mabel sighed, "Grunkle Stan, it starts in a few minutes!"

Stan moves to take the paper off the TV.

Ford grabs his hand, "Move that and pay the price!"

"Oh, what, fifty magical dwarf dollars?" Stan asked.

Ford frowned, "Don't mock our fantastical monetary system!"

"I'll mock all I want, it's my TV room!" Stan shouted.

"It's my house, you..." Ford sighs, "Listen, Stanley, did it ever occur to you to if you joined us you might actually have fun?"

"What? Now you listen to me!" Stan takes Ford's bag, "As long as I live I will never..."

"Grunkle Stan, wait!" Dipper shouted.

Stan scowled, "ever..."

"Stanley!" Ford shouted.

Stan scowled, "Play your smartypants nerd game!"

Just before he can dump the contents on the floor, the bag glows a pale yellow, and then zooms to Will, who catches it, "Alright, you all! Stan, that could've ended badly! Dipper, why do you care about this nerd game? Ford..."

"What was that?" Grenda asked.

Will sighed, before snapping his fingers, and Grenda looked over at Mabel, smiling, "Well? Aren't we going to watch Ducktective?"

"Memory spell? How'd you..." Dipper stopped.

Will sets the bag down next to him, before he starts breathing heavily, "Okay... Nothing bad happened... and everything is okay... That took a bit out of me, since I've never done that type of spell before, but... it's worth it... okay, Ford, Dipper, we should go down to the lab."

The two look at each other, before going down to the lab, leaving everyone else in the living room, while Will levitates all the paper and game stuff with one hand, and having to do another memory spell on Grenda.

Ford locks the infinity-sided die away; to Dipper, "This'll be here if you ever need it."

"Really?" Dipper asked.

Ford sighed, "Dipper, can I tell you something?"

Dipper nodded.

"You asked me earlier what I was working on. Well," he pulls curtain down to reveal the portal is gone, "I dismantled the portal. An interdimensional gateway is too dangerous for the world it feeds into. That's why I was mad at Stan for using it. He saved me but, as I feared, the instability of the machine created this:" He holds up a transparent sphere with a blob in it, "an interdimensional rift. I've contained it for now, but it's incredibly dangerous. Dipper, I don't want you to tell anyone about this. Not Stan, not even your sister. You understand?"

"Oh-uh, of course," Dipper nodded.

Ford sighed, "In my time I've made many powerful enemies, but I trust you with this secret. Now get yourself to bed. I have much research to do."

"Goodnight, Great uncle Ford," Dipper smiled, walking away.

Ford nodded, "Goodnight, Dipper." He puts the rift away.

Will looks down, fidgeting with his hands, "That... wasn't a good idea..."

"Nonsense, Will. Dipper deserves to know." Ford looked at him, "Why did you say that?"

Will bit his lip, "The more people that know... the more likely that... Gold'll find out... somehow, and... it won't be good. I'm sure you know that..."

"I know that, but... I trust Dipper to keep this secret."