Changes (Gravity Falls Fanfic)

Shape-What

Mabel's POV
Dipper sat down and Bill was getting ready to attack us again. I sat down next to Dipper.
"We have to do this, it doesn't matter who's life is lost! We have to defeat him or the world will be destroyed." Dipper said seriously. I looked at him. We both nodded to each other. I ran the opposite direction from Dipper. I started making noises trying to catch Bill's attention.
"BILL, LOOK AT ME! WOOP WOOP WOOP WOOP!" I started to yell at him.
"Hmmm you waiting for something...but what." Bill said as Dipper was about to jump on him. Quickly, Bill turned around and caught Dipper before he could hit him.
"Dang it!" Dipper yelled.
"Aw shoo-!" Dipper yelled as Bill flew up into the sky, grabbing his neck, then flew really fast back down. I saw lights coming from the hand which was on his neck. Dipper starting coughing out smoke?! How?! BILL, HE WAS SHOOTING FIRE INTO HIS NECK!
Bill then hit the floor, but Dipper hit the floor harder.
"Ow, *cough cough*, UGH my throat!" Dipper said as he lied on the floor, clenching his neck.
"Dipper are you okay?" I asked as I ran to him.
"Yeah, I'm perfectly fine." He said scratchily as he got up. Ford and Stan discussed what they were doing. They both ran around Bill. Ford pulled out his gun and shot Bill's eye.
"OW! RRRRG MY EYE!" Bill screeched in pain.
"NOW!" Dipper yelled as we all jumped on him. Stan punched him a few times.
Bill's POV
Those brats can think they can defeat me! Not now! Ugh, great, now I have to destroy the world another time. I disappeared and thought about next time. Yeah, next time!
Dipper's POV
My throat was killing me as I continued to cough. Bill was gone....for now. But Summers not over, and neither is this story! We have no idea what was in store for us in the future. Right now we celebrated. We all got into the shack and grabbed a Pitt Cola.
"CHEERS!" Mabel yelled as she bumped her's into mine. It spilled a bit but it was fine. I drank it, and was happy that it stopped my throat from hurting anymore. We all partied all night. Ford fell asleep on a chair in the kitchen, Stan was on the living room floor, Mabel was on top the table, and I was hanging off the TV. We all deserve a good rest. Suddenly I heard a window shatter. I got up and walked over to it. I saw Mabel crawling inside the house.
"Mabel? What are you doing?" I asked her quietly.
"I just, uh, well you see, UGH! I got locked out." Mabel said back to me. Her voice was darker. Maybe just a cold or something. I went back in the living room, lied down on the floor and stared at the ceiling. I fell asleep on the floor, but I was still wondering about Mabel. How did she get locked out if she was inside just a minute ago. Then I heard Mabel scream from the kitchen, which woke me up again. I ran back into the kitchen to see myself!
"What's going on here?!" I yelled to the clone.
"Dipper? There's a clone of me in the kitchen!" Mabel said oddly from behind me.
"That's not you, it's me!" I told Mabel.
"But it was me just a second ago..." Mabel said curiously.
"Oh great!" Said the clone. Suddenly it changed into the shapeshifter. That makes more sense.
"How did you get out?!" Mabel asked the shapeshifter.
"I don't have to tell you anything about how I got out!" The shapeshifter then changed into a cat and ran past us. We chased him. He ran into the living room. We ran in after him but when we arrived, we couldn't find him anywhere.
"Where is he? He can be anything right now!" I said more freaked out then a cat in water. I felt like we were surrounded by a bunch of murderers. After all, the shapeshifter does want to kill me and Wendy the most.....waitasecond! WENDY! I ran over to the window and saw the shapeshifter turn into a mouse and surrey towards the town.
"Mabel, come one! We have to save Wendy!" I yelled as I ran out the door.
We ran as fast as we could to Wendy's house.