Hey, everybody, so...I looked on Tumblr and found the whole 'Bipper in Not What He Seems' theory, and...as much as I don't think it's true and that it's an animation choice/error, that SPLIT second when I thought it was true...THIS popped in my head, and it's been bugging me since, so I thought I'd post it.

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Dipper walked through the woods dark at night. Everyone in the Pines family was asleep, but he was wide awake. Making sure that nobody was watching him, he entered a small hole in the ground. The hole took him into an underground tunnel. The only light in the tunnel was at the end, coming from what seemed to be a ghost in a glowing cage. Inside the cage, however, was none other than Dipper Pines. Wait...did I just say that right?! There's two Dippers! That can only mean one thing!

The solid Dipper approached the Dipper in the cage- -now seeming transparent and ghost-like- -, smirking, and now his eyes were noticeably different. They were a light shade of yellow, and his irises- -instead of being black dots- -were now rectangles. Ghost Dipper glared at solid Dipper which made solid Dipper's malicious smirk grow, and he gave an evil giggle. His voice was extremely different now. It didn't even sound like Dipper's at all.

"Ah man, your family is so gullible, Pine Tree," he said in…*gasp* BILL's voice! IT'S BIPPER, "They totally bought my act that I was you. You'd think after last time, at least your dumb sister would have figured me out."

"Don't call my sister dumb," Ghost Dipper said sourly, "What do you want anyway?"

"Well, unfortunately I couldn't get your sister to shut down the portal bringing the author, your grandfather, back. Not to worry, though. I'll have my revenge, playing as you."

"I don't understand...how were you able to imitate my voice and eyes this time, but last time you didn't?"

"Last time, I had nothing to worry about. I was trying to avoid people as much as possible that time. This time, however, your sister was by my side every annoying moment, so I had to make sure I was convincing. After all, Shooting Star has heard my voice before, even in your body. So, I couldn't stop the machine from being activated. I've got plans for a certain sweater wearing, brother betraying sister. Me playing you is going to have a big part in it. She's going to regret crossing me."

"Don't you DARE hurt Mabel!" Ghost Dipper threatened.

"Or else what? You're in a cage that's completely YOU proof. After all, I can't let you go and do what you did last time and possess a puppet. I'm not letting you expose me this time, kid."

"What are you planning, you sick dorito?!"

"I won't kill her since I need you kids. However, I will make her suffer, and there's nothing you can do about it!"

With a cackle, Bipper left the tunnel, leaving Dipper in his ghost cage. If ghosts could cry…

Dipper would be sobbing his eyes out.

Poor Dipper. Maybe it was a bit OOC for him, to cry (if he could) but I think Mabel is the most important thing to him since she's his twin sister. I think if he knew Mabel was in grave danger, he'd do whatever he can to help her and be horribly depressed if he was helpless to do anything (like he is now). Anyway, leave me a review thanks for reading!