𝙎𝙪𝙢𝙢𝙚𝙧 𝙤𝙛 𝙅𝙪𝙡𝙮, 1942.

I am 𝗦𝘁𝗮𝗻𝗳𝗼𝗿𝗱 𝗣𝗶𝗻𝗲𝘀, an archaeologist. I have found this weird 𝗭𝗼𝗱𝗶𝗮𝗰 𝗦𝗶𝗴𝗻, with a 𝗗𝗲𝘃𝗶𝗹 𝗧𝘆𝗽𝗲 𝗘𝗻𝘁𝗶𝘁𝘆 in the middle. It is just a 𝗱𝗿𝗮𝘄𝗶𝗻𝗴, so everything is okay.

But there are 𝘄𝗲𝗶𝗿𝗱 𝗻𝗼𝘁𝗲𝘀, look to be written in 𝗯𝗹𝗼𝗼𝗱. They say '𝗛𝗲 𝗰𝗮𝗻'𝘁 𝗯𝗲 𝘁𝗿𝘂𝘀𝘁𝗲𝗱' and '𝗗𝗼 𝗻𝗼𝘁 𝘀𝘂𝗺𝗺𝗼𝗺 𝗮𝘁 𝗔𝗟𝗟 𝗖𝗢𝗦𝗧𝗦'. I'm guessing that's the 𝗼𝗻𝗲-𝗲𝘆𝗲𝗱 demon in the centre.

𝗪𝗿𝗶𝘁𝘁𝗲𝗻 𝗯𝘆 𝗦𝘁𝗮𝗻𝗳𝗼𝗿𝗱 𝗣𝗶𝗻𝗲𝘀, 5𝘁𝗵 𝗼𝗳 𝗝𝘂𝗹𝘆, 1942.

𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗲𝗻𝗱𝗲𝗱.

"Who's that, Dipper? He has our surname!"
   "I don't know."
    "Should we ask grandpa Stanley?"
   "No! We're not supposed to looks at this, it's better we not."

(In this AU, Stanley is their grandpa)

****

Dipper and Mabel Pines, also known as the Pines Twins, crept down the stairs. It was kinda hard, since they had creaky stairs.

They slid the recorder back into the cupboard, where they had found it, and agreed not to talk of it again.

Then they went into the kitchen, and saw their Grandpa Stanley reading the newspaper, in his vest, underwear and slippers.

The two tried to sneak upstairs, but they were stopped by Stan. "Kids." He said, making them flinch.

"Y..yes, Grandpa Stan?" Dipper stammered.
   "Can you keep a secret?"

The twins looked at each other. "Is he talking about the tape?" Mabel whispered to her brother's ear.
   "Don't know, best to find out," Dipper replied, as the two stood up straight.

"Yes, we can," Dipper said.
   "Good, now come 'ere."

Mabel and Dipper walked up to their grandpa, and listened closely to what he was going to say.

"I've been working on the experiment, which is why I've been so tired and dirty lately. Now, I'm pretty sure this is illegal, so don't go off telling your parents about it. Anyway, let's show you two what I've done." Stan explained.
   "If it's illegal, then why are you doing it?" Mabel asked.

Stan stopped in his tracks.

"You'll see," he replied, walking off towards the basement. The twins followed, nervous of what was going on.