Things were never the same since Daniel's return. The Surprise Hut was temporarily closed for repairs due to the gravity anomalies caused by the portal. And at the moment, Marcus and Dana were in the gift shop, with Marcus filming Dana with a camera.

"Seriously bro?" Dana asked. "Is this necessary?"

"Do it!" Marcus ordered.

Sighing, Dana dully sang a song Marcus wrote.

I'm Dana, and I was wrong
I'm singing the Dana Wrong Song
I should have trusted the Guardian
And I almost ruined her plan

"Do the kicks!" Marcus ordered. Dana began to kick midair. "Jazzier!" Marcus ordered, resulting in Dana doing weak jazz hands.

Unsure of the results, Marcus looked at Oinkers. "What do you think?" he asked.

The pig oinked in response. "Take thirty!" Marcus ordered, making Dana groan.

But before Dana could perform the song again, Daniel emerged from the TARDIS (which still looked like a vending machine) with a green creature on his wrist, making Dana and Marcus scream.

The Guardian rushed over to Daniel, clutching her cane. "Remember Daniel, don't let it taste human flesh!" she warned.

"You don't have to tell me twice!" Daniel replied. He punched the creature and it dropped off his hand. It began to crawl around the gift shop.

"What the?!" Dana yelped.

"Can we keep it?" Marcus asked.

Daniel chased the creature into a corner of the room. The Guardian rushed over to him and she pointed her cane at the creature, the silver orb opening up and revealing a green light. "I paralyzed it!" she said. "Now!"

Daniel shocked the creature with his gloves and held up its burnt body. "Yikes," he said, holding his nose. "Smells like zombie barf."

Dana ran over to Daniel and the Guardian. "Mr. Noble! Guardian! Do you need any help with that? I've read all about those creatures in McGucket's journal, and I think I know how to-"

"Whoa whoa whoa!" Daniel said. "Look, you seem like a nice girl, but this stuff's too dangerous."

"Guardian?" Dana asked.

"He's right," the Guardian said. "You just have to accept that I no longer have time to spend with you." She looked over at her companion. "Come on, Daniel. Let's put this thing in a glass jar."

The two long-time friends entered the TARDIS. "Didn't know sonic devices come in cane mode," Daniel remarked.

"I use a cane now," the Guardian said as the TARDIS door closed. "Canes are both cool and classy."

"Maybe next time then?" Dana asked. "Or not? ...Or never?"

"Aww, Dana, don't take it so hard," Marcus said.

"But Marcus, ever since the encounter with Blind Ivan and the other Timelords, I've wanted to know who this mysterious Guardian of Time and Space was," Dana said. "Now she turns out to be impersonating Graunt Silvia and I can't even talk to her anymore."

"Don't worry about all that space stuff," Marcus said. "Besides, the feel-good musical episode of Psych is airing this Friday! That's all the excitement you'll need this week."

As Marcus happily sang a song that he saw in an exclusive sneak peak online, Dana looked at light coming from the TARDIS, a small frown on her face.

That afternoon, Marcus was writing in the living room. "Dear mom and dad," he said as he wrote. "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 the Guardian's old friend came out of this portal-thingy. Now we have two caretakers for the price of one! And they make an awesome crime-fighting duo!"

Dana ran in with a box. "Marcus!" she exclaimed. "You'll never guess what I found at the store today!"

"Dogs with hats?" Marcus guessed.

"Nope," Dana said, opening the box. "It's the board game based on my favorite detective franchise of all time: Mirrors of Albion: the Game! You wanna play it with me?"

"Well I do like the whimsicalness of Alice in Wonderland," Marcus said. "How do you play?"

"The rules are simple," Dana said. She opened a game book. "Players take turns solving puzzles and fighting evil creatures in order to save Albion resident Alice Fleming from the clutches of the wicked puzzle master the Queen of Hearts. This is accomplished through different search-and-finds while under a certain time limit, although some puzzles require riddle-solving skills."

"And then we meet talking flowers?" Marcus asked.

"Yes," Dana said. "And...no. First we make an enemy chart."

Marcus groaned. "This is like Homework: the Game!" he complained.

"Come on, Marcus," Dana said. "I need at least two people to play."

Salls walked in. "Oh wow, would you look at that," Marcus said. "Two people!" He backed out.

"Hey, Salls," Dana said. "Up for a little game of Mirrors of Albion?"

"Aw, sorry, Dana," Salls said. "I don't go in for that detective kind of stuff. I'm more of an FCLORPer."

"A wha-?" Dana asked.

"FCLORP," Salls said. She held up a wristband with 'FCLORP' written on it. "Foam and Cardboard Legitimate Outdoor Role Play. It is where a passionate brethren of craftsman bring their dreams to magical reality."

"Well, thanks anyway, Salls," Dana said. She sighed sadly.

Dana was in the backyard with a goat with the game set up. She rolled some dice. "Oh, nice!" she said. "You found a bell in the Backstreets!"

The goat bleated. "And...this is sad," Dana thought. "Maybe I should take a snack break."

Dana entered the gift shop and headed over to the TARDIS to get a snack from its vending machine exterior. But as soon as she touched it, it swung open. This was odd, considering that entering the TARDIS required imputing a specific combination.

Dana wasn't sure what to do. She knew she wasn't allowed in the TARDIS, but a nagging feeling in the back of her head urged her to continue on. So without thinking clearly, she entered the TARDIS.

One elevator ride later, Dana arrived in a room in the TARDIS that was filled with computer monitors. She looked around, wondering why the TARDIS responded to her touch. Was this thing alive?

"Dana?"

Dana turned around, only to see Daniel. "Mr. Noble!" she yelped.

"What are you doing down here?" Daniel asked.

"Funny story," Dana said nervously. "I was just going to get a snack when the TARDIS swung open as soon as I touched it-"

"Wait," Daniel said, noticing something in Dana's hand. "What's that you're holding?"

"This?" Dana asked, giving the object to Daniel. "It's a game piece from Mirrors of Albion: the Game."

Daniel looked at the game piece. "Looks like my cat when she found the catnip," he said. He gave the game piece back to Dana.

"This particular character is Cheshire Jr.," Dana explained. "He's the main protagonist from the whole Mirrors of Albion franchise."

"Whoa whoa whoa, Cheshire?" Daniel asked. "As in the Cheshire Cat from Alice in Wonderland?"

"Yeah," Dana answered. "You like that movie?"

"'Course I like Alice in Wonderland," Daniel said. "It's my favorite movie in the whole multiverse. I can't believe it's still popular."

"It is!" Dana said excitedly. "And I've been looking all day for someone to play the board game with me!"

"Tell you what," Daniel said. "How about you teach me how to play this game of yours?"

"You'll really play with me?" Dana asked.

"Sure, why not?" Daniel replied.

A Few Days Later...

Marcus and Oinkers were in the kitchen. "Okay, Oinkers," Marcus said. "I've got everything we need to watch the musical episode of Psych tomorrow." He held up a box full of food with a ramp. "I even made mouth-ramps so I can pour food into my mouth without taking my eyes off the screen. Now if only I could find Dana and get her hyped up over the episode..." He looked around the room. "Where is she, anyway?"

In the TARDIS, Daniel and Dana were playing Mirrors of Albion: the Game. "Okay, let's see..." Daniel said, looking at the character chart (since most of the protagonists were original characters). "You enter Alice's House. Lady Fleming begs for your assistance. But wait! There's a trap!"

Dana gasped.

"There's a puzzle created by..." Daniel checked the character chart again. "The Queen of Hearts? Is she the main antagonist of the game?"

"Yep," Dana answered. "But in the franchise, she's obsessed with creating puzzles instead of beheading people."

"Seems a bit different from the death-crazy madwoman I remember from the animated film," Daniel remarked.

"Mmm, yeah, the whole Alice in Wonderland story has gone through various remakes and redesigns over the years," Dana said. "Thankfully you missed the time when Tim Burton tried to make it 'darker'." She shuddered at the thought of the creepy and bland adaptation. "Must have been a dark time for Disney."

"Sounds like a good time to be stuck between dimensions," Daniel said.

"Mr. Noble, I've been meaning to ask you," Dana said. "Where were you before you came out of that machine, and what have you and the Guardian been doing down here? Are you working on something behind that curtain?"

"It's better if you and your brother don't find out," Daniel said. "But I can show you something I brought back with me." He dumped out the contents of his bag and opened a box. "It's an infinity-sided die."

Dana smiled and gasped happily. "It looks so pretty!" she said, her naturally high-pitched voice squeaking.

"These things are outlawed in 9,000 dimensions," Daniel explained. "And there's a good reason why. Infinite sides means infinite outcomes. It's unpredictable if someone decided to roll it. Faces melt into jelly, the world turns into an egg... Anything can happen! That's why I have to keep it in this protective case. Now, back to the game. We were about to tackle one of the Queen of Hearts' puzzles..."

That night, Dana was planning out puzzles on the floor of her room, excitedly muttering to herself. Marcus entered the room, needing to check in on his sister.

"Dana, are you going to go to sleep?" Marcus asked. "You've been writing stuff down for hours."

"Sorry, Marcus, I have to finish these puzzles," Dana said. "They're going to totally stump Mr. Noble tomorrow. I can't wait to see the look on his face."

"You're, uh, spending a lot of time with Mr. Noble lately, huh?" Marcus asked.

"You have no idea," Dana said. "I knew an interdimensional traveler must be cool, but he's better than I imagined."

"Yeah, that's great," Marcus said. "Just don't stay up too late." With that, he headed over to his room.

But as Dana resumed puzzle-planning, she was completely unaware that her birthmark was glowing in-sync to her heartbeat...

The next day, Marcus and Gary were standing at the hut's doorway. Marcus was wearing a white t-shirt that had the Psych logo printed on the front.

"Thanks for coming over to watch the Psych musical episode, Gary," Marcus said.

"Of course!" Gary said with a smile. "I've always been a sucker for Broadway performances!"

Suddenly, a clock chimed, making Marcus gasp. "Viewing positions, everyone!" he exclaimed.

Gary and Marcus ran to the living room, but they stopped and gasped when they saw that Dana and Daniel had laid their game all over the room. "What on Earth is going on?!" Gary asked.

"Dana, could you maybe move this to another room?" Marcus asked.

"No way!" Daniel said, rolling the dice. "We're just getting started."

"We kinda ran out of room in the TARDIS and we're trying to go for a world record," Dana explained.

"Come on, Stargirl!" Marcus said. "Psych starts in a few minutes!"

Suddenly, the Guardian entered the room. "Daniel, did you seriously smuggle an infinity-sided die into this dimen-" She saw the condition of the room. "What is going on here?!"

"Oh, hey there, Guardian," Daniel said, acting nonchalant. "I was just playing Mirrors of Albion with Dana." He let out a heartfelt sigh. "If only Silvia was alive today. She would love-"

"GAH!"

Dana was clutching her forehead in pain, her birthmark glowing brightly. "Dana!" Marcus exclaimed, rushing over to her and hugging her.

With Dana's bangs clipped back by her sapphire barrette, the Guardian could see the glowing birthmark. "Marcus, what's going on?" she asked.

"I don't know," Marcus replied. "She usually gets headaches, but the glowing birthmark is new."

"Hmm..." The Guardian kneeled down for a closer inspection of Dana's forehead. "We better get her to the TARDIS."

"The what-now?" Gary asked.

"I'll explain it later," Marcus said.

In the TARDIS, the Guardian scanned Dana with her Sonic Cane. "How odd," she said. "These readings state you're not exactly human."

"What?!" Dana asked.

"I'm detecting traces of exposure to the Untempered Schism," the Guardian explained. "Dana, you're half-Gallifreyan."

"How is that possible?!" Dana asked.

"I don't know," the Guardian admitted. "But the Untempered Schism is what allows Timelords and Timeladies to regenerate."

"Then what are we waiting for?" Daniel asked. He pulled out his gun. "Let's see if she really is half-Gallifreyan."

"No, Daniel!" the Guardian said. "The Untempered Schism giving Gallifreyans the ability to regenerate only works if they are exposed to it for billions of years. I'm only detecting small traces of it."

"So what do I do about it?" Dana asked.

"Nothing for now," the Guardian answered. "I don't know how you are a human-Gallifreyan hybrid, but I suggest that you keep this to yourself."

"Okay..." Dana said. "Maybe so mindless fun can help me relax from this revelation."

"Guys! We can still watch the musical episode of Psych!" Gary said "It's not too late!"

And so, Dana, Marcus, Gary, and Salls were the living room watching Psych the Musical. It started off alright with catchy songs (some of which made Marcus hum along). But towards the end...

"The writers killed off Yang?" Marcus asked. "Why on Earth would they do such a thing?!"

"UNBELIEVABLE!" Gary exclaimed.

"And here I thought it was going to be a happy-go-lucky filler episode," Salls said.

That evening, the Guardian and Daniel were in the TARDIS. The Guardian locked the infinity-sided die away. "There," she said. "This should prevent it from falling into the wrong hands."

Dana entered the TARDIS. "Guardian? Mr. Noble?" she asked.

"Oh, hello Dana," the Guardian said. "Still thinking about being half-Gallifreyan."

"I'm still trying to adjust to this revelation," Dana said. "But I don't think I can handle it."

"Do you want me to take you to Blind Ivan?" the Guardian asked. "They're still using Confession Dials on people who want to forget painful memories."

"I'd rather not," Dana said, remembering what happened to Old Woman McGucket.

"Okay then," the Guardian said. "Let me know if you want to change your mind."

"Okay," Dana said, heading for the TARDIS elevator. "Goodnight, Mr. Noble. Goodnight, Guardian."

"Goodnight, Dana," the Guardian said.

Once Dana was gone, Daniel revealed a snowglobe-shaped object that contained a floating blob of inky nothingness. "Guardian, I've been thinking," he said, putting the object in a desk drawer. "Dana reminds me too much of Silvia. You don't suppose she's..."

"I don't know," the Guardian said. "But it's best if she stays away from our work. Who knows what might happen if she stumbles across something she wasn't supposed to know."