"Why is the sky blue, Dipper?" Mabel asks me.

"Because that's the way our eyes perceive that wavelength, Mabel." I reply to her question. I learned a LOT about the sky in like, third grade.

"Oh. Well, someone seems grumpy with a know-it-allish ness. Besides, how do you know that?" Mabel asks me. I don't want to answer, but I do, to appease her. Otherwise I'll be forced to converse with a pig.

"Third grade sky class. It was called that for a reason, Mabel. Don't you remember?" I ask, then I feel terrible. I forgot.

I'm in the accelerated program, and she isn't. Never has been, but I still feel like she is always with me, so I never retain that she isn't there. She never liked that I got put in there without her, and now I feel horrible about it.

"I'm sorry, I forgot about the… Yeah. I'm sorry. No more school talk." I say quietly. Then I look over at Mabel. She reaches her hand up and wipes her nose.

"Yeah. No more, please." Mabel says quietly.

"Oink!" Waddles interrupts our sad thoughts. I smile for the first time. I suddenly feel a whole lot better, from a small smile, to a happy laugh.

"Mabel, look who's feeling like a gnome who was just sucked up a leaf blower. And look who looks like he's on a shot of Mabel juice." I run around a little, and Mabel laughs at my weirdness.

"Okay, bro-bro. I'll cheer up." We reach the small park in our neighborhood and Mabel smiles.

"Race you to the swings!" Mabel says and blasts off. I run after her, and forget where I'm looking.

I crash into a pole that holds the swings up. "Ow." I'm a little dizzy. Mabel comes over to help me up.

"You're crazy bro-bro." She smiles at me. I feel crazy. I try to hug the 4th Mabel I see on the left since there's more than one.

"Yeah, Mabel! Whoo! World darkening, legs weaker." I collapse on the ground blindly, and hear nothing for a minute.

"OH MY GOODNESS DIPPER! Why didn't you tell me you were going to pass out?" That's the last thing I hear.