The next morning Dipper woke up and saw that Mabel wasn't there. He got out of bed and saw that she left a note on hers. It said...

Hey Dipper
Candy and Grenda and I are going shopping and going to the movies today to catch up. Hope that's ok.
Mabel

"Grr Mabel. You were supposed to help me!" Dipper growled to himself.  Dipper then got dressed and went down stairs.  He found Stan cleaning up the shack and Soos fixing a loose board in the floor.

"Hey, bud.  How did you sleep?"  Stan asked Dipper.

"Good.  Did you know that Mabel went out to have fun with Candy and Grenda."  Dipper asked.

"Yeah I did.  I said it was ok.  But enough about that.  How about we go get some food."  Stan said.

"That sounds good, but shouldn't I get to work?"  Dipper asked.

"We'll start after breakfast.  I'm starving."  Ford said from behind Dipper.  Dipper jumped and turned around.

"Haha you scared me."  Dipper laughed.  "Ok then.  Let's eat."  Stan, Ford, Soos and Dipper all got in the bus and Stan drove them to the Greasy Diner.  Once they got there, Stan parked the bus and they all got out.

"Wow.  The Diner looks exactly the same."  Dipper said and they all walked in and got in a booth.

"Hey, there's one thing I don't see.  Lazy Susan where is she?"  Dipper asked.

"Oh she died last year of a heart attack."  Stan said and pointed to the picture of her on the wall. "She will be missed."

"So who's running the diner now?" Dipper asked.

"May I take your order." A voice said from next to Dipper said. He looked up and screamed.

"Bud Gleeful. Your running the diner!" Dipper said surprised.

"Yeah. I bought the diner after my car dealership went downhill. Apparently you can't steal people's cars and then sell them for more than there worth." Bud said.

"Even though I hated your entire family especially your son...I've always liked you." Stan said.

"Ah me too." Bud said.

"I thought you'd be in jail because of what you did to me and Mabel at the mayor election." Dipper said.

"I was actually in there for one day until my maid broke me out." Bud said. "I feel so bad for my son. That place is aweful. Anyways can I take your order?"  They all ordered and a few minutes later they got their food.  Once they started to eat the diner began to shake.

"What was that?"  Dipper said.  The diner shook again. Then they all heard a loud ferocious roar. Just then the door and part of the wall was broken open by the Multi-bear. Everyone in the diner ran out. Ford took out a tranquilizer gun and pointed it at bear.

"It's the multi-bear!" Dipper said. "Last time I met him he was so somewhat gentle."

"During all my studies.  I've never faced this creature before." Ford said. "Dipper look at his eyes." Dipper looked at the eyes of the multi-bear.  They were all glowing red.

"He must be possessed."  Dipper said.  "There must be a way to get him out of the trance." Dipper looked around the diner and saw a music player.  He ran over to the music player and took a cd out of his jacket.  Suddenly duper was pinned to the wall by the multi-bear.  Dipper reached and reached and put the cd in the music player.  He then hit play.  The song disco girl then started playing through the diner.

"Why is this girly song playing?"  Stan asked from underneath a table.

"Exactly, you should figure out how to kill that weird best thing little dude."  Soos said.  "Ooh look floor pancake." 

The Multi-bears eyes soon turned back to normal.

"What happened."  He said.

"Hi multi-bear.  Remember me?"  Dipper asked.

"Oh yeah.  Your the one who didn't kill me all those years ago.  Thanks again by the way."  The multi-bear said.

"What going on here?"  Ford said with his gun still raised.

"Uncle Ford, you can put that down now."  Dipper said.  Ford lowered his gun and put it in his coat.

"I'm so sorry if I tried to kill you guys.  I don't know what came over me.  I was just sitting there in my cave listening to my favorite music when all of a sudden everything just went blank."  The Multi-bear said.

"You must have had some sort of spell out on you by Bill."  Ford said.  "I was right Dipper he is after this family.  We should head back to the lab...now"