Dipper and Mabel Pines are twins that are visiting heir Grunkle Stan for the summer. It was a boring summer and only Dipper felt the strange presence of Gravity Falls. Until today the young boy never felt so still. However his older(by 5 minutes) twin sister Mabel tapped his shoulder.

"Dipper I've sent the note to that cute boy." Mabel giggled looking at the cards where a boy was.

"Mabel did you rig it?" Dipper said while sweeping the floors. Mabel froze and slowly turned to her sibling with a guilty look.

"Maybe." She whispered in a laugh. Dipper shook his head and patted her head.

"Mabel why do worry with boys? I mean 3 years ago you thought they were stupid, stinky, and rude people." Dipper smirked. Mabel had a depressed face.

"You got me. I mean Dipper this our first summer away from home! This could be my chance to have an romantic relationship like in mom's novels." Mabel said holding her hands next her head.

Dipper laughed and continued his job. He was almost finished when a loud burp could be heard. He looked behind to see his Grunkle Stan.

"Yeesh. Gotta lay off the soda." Stan burped. Stan was holding several signs and looked around.

"Alright guys we need someone to post these signs in the spooky forest east of here." Stan said. Soos, the handyman of the Shack, fell off and went up to his boss.

"I'll do it Mr. Pines." Soos said.

"Sorry Soos, but I need you to work on the AC. Wendy come post these signs!" Stan ordered at the clerk. She was to busy reading a magazine.

"I would but they're just to far." Wendy lazily said with a half attempt to reach for it.

"Wendy I hate you sometimes." Stan said.

"Love you too boss." She sarcastically said. Stan rubbed his nose and looked at the twins.

"Alright how about this. We need to post these signs and we I mean you. So who's it going to be?" Stan said. Dipper and Mabel looked at each other.

"Answer me this then, who witnessed anything something in the forest raise your hand." Stan said. Dipper raised his hand.

"Congratulations you win the privilege of posting these signs." Stan said tossing some nails and and a hammer along with the signs.

"Darn it. Fine I'll go and Mabel try not going out to find boys while I'm gone." Dipper said.

"I make no promises." Mabel replied. Dipper just sighed and went out. Over an hour a bunch of signs have been posted and Dipper was on his final one.

"Alright final one. Maybe tomorrow I can go out here and explore." Dipper said nailing the sign to the board. A sharp banging sound could be heard. Dipper very curious tapped it and heard the noise again. Dusting off the door he opened it and saw a line. Putting his little fingers through it he opened the panel and found a controller. Playing with the knobs a section of the ground next to him opened and shown its contents.

"What the heck is this? Some kind of journal and a container?" Dipper said. He opened the journal and saw the secrets it held.

'To those who have found this journal. I have lived in Gravity Falls for years and taken it upon myself to learn the secrets this place has. Upon my investigation I have gained and lost everything. My greatest moment was receiving a special eye, an eye that helped me survive this long. However I must hide it and my journal here as I suspect I am being followed. My God help me survive.' Dipper read. Looking towards the container he opened it and saw a red ball in it. However once opening it a bright light illuminated the forest. He felt his left eye was burning away and fell on the ground. Once he gained consciousness he saw the red ball was gone. Confused he looked around until he saw a deer with something blue illuminating.

"What the heck?! What am I seeing?" Dipper questioned. Grabbing the journal he opened it and saw a few symbols he could suddenly read.

'These symbols are meant for only those with the Sharingan can read.' Dipper read. He saw a picture of the Sharingan and ran to a nearby stream. While running Dipper saw how much energy he had and felt like doing flips. Once he reached the river he looked horrified.

His left eye was gone and replaced with the Sharingan.