Reverse- a gravity falls fan fic

Chapter 20

Wendy:
I heard Mabel's scream from upstairs. I hate to say this, but i expected it. I sunk lower and lower in the chair. I felt so guilty. Why cant mabel accept that her brothers not coming back and make it easier for the rest of us? Oh dipper... Why did you have to leave your sister so soon? She still needs you! We still need you! The attempt to rescue mabel had come at a terrible cost. Dippers life. He gave himself up to save mabel. He could still be alive... I shook the thought out of my mind. he's dead. Dipper is dead. The truth didn't help much either. I ran my fingers through my blond- streaked red hair. Its almost back to normal. My eyes are a blueish green still, but when Cody wakes upmhe can fix it. If he wakes up. Mabel ran down the stairs and ran over to the door, as she opened the door and ran outside she yelled over her shoulder. "Dippers not dead you know! HE'S NOT DEAD!"
This was kinda short. Luckily ill make it a double, maybe triple, chapter.
Dipper:

Something cushions my fall. I open my eyes. Evil dipper is slowly levitating me to the ground, a devilish grin on his face. Once on the ground, i slowly get to my feet. Quick as a flash, evil Mabel darts forward, but evil dipper holds out his hand and she stops and steps back. "Well well well, dipper pines. The hero who saved his sister from his fate." I took a shaky step forward. "I don't know what you mean". I said, trying hard not to let my voice shake. Evil dipper paces back and forth in front of me. "Well you knew you might not make it out alive... But you gave your sister and friends a chance to. How selfless" i stood up straighter. Ill buy you some time Mabel, ill try to. Evil dipper takes a step forward. "Unluckily for you, you cant stay here alive! We have a very important job for you..." "Heh heh heh..." Says evil Mabel, stepping forward. "What'll it be? Fight me fist to knife or my brother?" I sized them both up. Evil Mabel's a lot faster and evil dippers stronger... "Dipper" i said. "Ill take on dipper" Mabel steps back, looking a little disappointed. Evil dipper pulls out his famous blue-flaming knife. We circled each other for a little, evil dipper passing the knife between his fingers. He struck first, diving in and aiming his slice towards my neck. I try to dodge, but he hits my shoulder. I yelp in pain and draw back, grabbing my shoulder with one of my hands. He comes at me again.
Slash
Slash
Slash
I fall back as he comes in for the kill blow. He stabs downwards with the knife. I scream in pain. It feels like I'm on fire. Flaming knife... Why did it have to be a flaming knife? I fall to the ground, evil dipper and Mabel standing over me. I hear another scream, this time, its more like its in my head. Everything begins to fade... Im Sorry Mabel... Im so, so sorry... Everything goes black.