WARNING: THIS IS FOR AGES 13 AND UP! BLOOD, VIOLENCE, AND SEXUAL CONTENT!

OK this is my first story and its about a switch up of gravity falls with twilight. I hope you enjoy it. (:

Chapter 1

Mabel and Dipper are now 14 years old. The twins were fast asleep in their beds. All of a sudden a sound wakes Dipper up. He looks over to where his sister was sleeping, but now is staring out the window. "Mabel, what are you doing?" he asked. "I heard something." Mabel said now looking scared. Dipper gets up towards the window to see if he could see what caused the noise. All he could see was trees and darkness. He then goes through his drawers. "What are you looking for?" Mabel asked still looking scared. "For a flashlight I'm going to see what's outside." He pulls out a yellow and black colored flashlight. He puts on his sneakers and walks towards the door. "Wait, I'll go with you." Mabel whispered.

As the twins walked towards the door to leave their rooms they heard the noise again. Dipper and Mabel looked at each other exchanging scared looks. Dipper walks through the living room with Mabel not too far behind. CRACK! It sounded as something was outside the shack. Dipper couldn't stop shaking the flashlight. As he turned the knob slowly. CRASH! BANG! Mabel jumped from the noises. "I-It came from upstairs." Mabel shuttered. Dipper lit the flashlight around the room. They hear a low growl. He quickly shone the light on the stair case and see a pair of red eyes. Mabel screamed. They creature jumped down the stairs and stared at them. The creature now standing on its hind legs and is now 8 feet tall.

Mabel shocked unable to move Dipper pushed her into a closet and locked the door. "We are going to die!" Mabel shouted. "Will you keep your voice down?!" Dipper snapped back. Dipper pressed his ear on the door to try to hear anything… "Could you hear anything?" Mabel whispered. "Shh, I'm trying." Dipper said in reply. He pressed his ear closer to the door. He hears claws scraping on the hard wood floor in the gift shop room. He hears loud deep breathing… "What was that thing?" Mabel said concerned. "I don't know" he continued "a dog maybe?" "That was some big dog." Mabel said. "SHH…" SHUFFLE SHUFFLE THUMP silence… SHUFFLE SHUFFLE THUMP silence…It got closer and closer until it was right outside the door. Then deep heavy breathing… Dipper gulped. Mabel looked as if she was going to cry. Dipper hugged Mabel as if he was going to protect his twin from whatever was on the other side of the door. The breathing was so loud they could hear it a couple of feet away from the door. Tears flowing from Mabel's eyes. The breathing stopped. KNOCK KNOCK… The twins looked at each other confused. What kind of creature knocks on a door can't they knock the door down? Dipper thought. Dipper gulped and opened the door slowly…

Sorry if that was short I have to get back to class… And yes I did this in school at lunch. (; Please comment!