I'm new(ish) to this and I'm really excited. I've read so many fanfictions and I've gathered so many ideas. I always wanted to create a fanfiction so I'm FINALLY doing it. Danny Phantom and Gravity Falls are two of my favorite shows. Also, I think they crossover nicely (does that make sense?). I don't know how often I'll update but I plan on finishing this story. I'm usually very busy so it might not be so often, don't worry. Anyways I hope you enjoy this story.

I don't own Gravity Falls or Danny Phantom.

Danny

"Danny, why are we in the ghost zone?" Tucker asked confused.

"Because Clockwork said he had something urgent to tell us." I informed him. It's unusual for Clockwork to request assistance, this must be important. He sent the message via wolf, although I'm not completely sure how he was able to get ahold of him. Once I heard the message, I called Sam and Tucker immediately. They drove the specter speeder while I guided them.

We arrived at clockwork's tower a while later. The observants guided us to Clockwork who waited patiently standing in the middle of the room. He was currently in the form of a middle aged adult and looked slightly worried. I walked in, Tucker and Sam followed behind. Worried looks were plastered on everyone's faces. This must be bad.

"Danny, I have some bad news." Clockwork said. A dead silence feel in the room. "Dan escaped."

"What!" Tucker, Sam and I simultaneously yelled. Dan is the future version of me from an alternate timeline. He has Vlad's plasma core and my ice core. With those two cores combined, he is the ultimate enemy. In fact he almost killed my friends and family, and they would be dead if it weren't for Clockwork saving them. Ever since I defeated him, Clockwork and the observants kept a close eye on the Fenton thermos he was trapped in. he has tried multiple times but failed to get out of the thermos, until now.

"How did he escape?" Sam inquired. She looked the most worried out of all of us. Clockwork wove his staff over a screen. A video token from above began to play. It showed a hallway leading to a door. That must be where they keep Dan. A figure appeared in the hallway, it was walking towards the door. As soon as he went in an alarm went off, several observants rushed to the door. The screen then showed a room with a door on the left. Seconds later the door bursts open and the observants rushed in. The room was empty, all that's in there are the panicking observants. Static appeared on the screen depicting that the video ended.

"Where did they go?" I asked.

"We traced them down in a town called Gravity Falls" Clockwork responded. "Danny, we need you to go to Gravity Falls, find Dan and whoever helped him, capture them, and bring them to me. I'll deal with them."

"Leave Amity Park? What about the ghosts, and school, and my parents?" I said.

"I'll take care of school and your parents." Clockwork assured.

"Jazz, Tucker, and I will deal with the ghosts." Sam said. "You go stop Dan."

"Yeah, we'll take care of everything" Tucker said. Am I really going to do this? I have to, there's no limit to the amount of havoc Dan can cause. Now he has someone to help him. I turned to Clockwork.

"When do I leave?" I choked out.

"Now." Clockwork responded. The screen used to watch the video showed an image of a dirt road and a thick forest behind it. I walked towards the image, it must be a portal. I stuck my hand in the portal, heat covered it immediately. I looked back at Sam and Tucker and smiled, they smiled back. Without thinking I hopped through the portal. My body was submerged in heat. The portal behind me closed leaving me stranded. There was a large billboard above the road that said welcome to Gravity Falls.

Dipper

"Dipper it's your turn to work at the register!" Mabel shouted from behind the counter where the cash register was.

"Coming!" Dipper shouted back. He had been looking through his journal that he found in the thick forest while hanging signs to advertise the Mystery Shack. The journal was filled with information about the weird and dangerous things in Gravity Falls. So far the journal has helped him and his twin sister Mabel out of dangerous situations and answered many questions. It was an old journal colored red with a gold six fingered hand with a three inside of it. The author of the journal has been the biggest mystery of the summer.

The Mystery Shack was an old tourist trap where people would waste their money on cheap attractions. Everything there was overpriced and of low quality. It's also a house where my twin sister Mabel, gruncle Stan, and I stayed.

I exchanged places with Mabel and began taking tourist's money for cheap novelties. I still can't believe that people think the attractions in this museum are real. Most of them are just animal parts glued together, you can even see the glue. It's just shocking to me how this shack has so many fake exhibits when weird things are happening in the forest in the exact same town. Gruncle Stan even believes in the stuff that happens in the woods. Yet he still refuses to put any of it in the museum. I wonder why.

Out of the corner of my eye I saw Gruncle Stan talking to some teenager. I haven't seen him around Gravity Falls before. He had raven hair, blue eyes, and looked slightly older than me, but not as old as Wendy and her friends. He had on a white shirt with a red oval in the middle and blue jeans. Gruncle Stan sounded like he was trying to make a deal with the kid. The problem was, he's a con artist. This wasn't going to end well.

"Dipper, come here." Stan yelled from across the room causing everyone to look at me. Wendy was back so she took over the cashier and started to take everyone's money. I walked over to them wondering what I did.

"Show this boy around the house. He's going to be staying with us for a while." Stan said. I was surprised. We never had anyone stay with us.

"Ok" I responded. I started to walk to the door labeled employees only. I still wondered why Stan was allowing this random kid to stay with us. Knowing my great uncle, he had to have at least pay an expensive rent. "So, how much did he make you pay?" I asked.

"One hundred dollars per night, and work in the Mystery Shack." He responded.

"Wow, that's lenient." I said. It actually was, usually he charges somewhere around three to five hundred dollars with work in the Mystery Shack. This guy must be a good negotiator.

"Yeah, it took a while, but I convinced him to let me work extra hours in the shack. I'm Danny, Danny Fenton." Danny said.

"I'm Dipper Pines"

"Dipper? Is that a nickname or something?" Danny inquired.

"Yeah." I said lifting my hair to reveal my birthmark in the shape of the big dipper.

"Oh, that makes sense."

We were now in the living room where Mabel had been watching Ducktective. When she saw Danny her eyes lit up. Without pausing the TV, she jumped up and rushed over to Danny.

"Hi, I'm Mabel." Mabel said so loud she almost shouted. Of course Mabel would flirt with Danny within the first minute he's here.

"This is my twin sister Mabel." I said trying to lead Danny out the room and away from Mabel. "She flirts with every boy she sees."

I showed Danny the rest of the house. He told me more about himself. He is fourteen, and from a city called Amity Park. He's a pretty nice guy, but I can't help but wonder what he's doing out here in Gravity Falls, possibly thousands of miles away from Amity park without a parent or guardian. I don't think he's a normal teenager. He has to be hiding something, and I'm going to figure out what it is.

So, chapter 1 yay! I know it's kind of short (haha not really) but I plan on making it longer in the future. Also this surprisingly took a short amount of time to write so I might update often or not. It depends on what I'm doing. I don't know if you thought this chapter was all that great, I had writer's block for a while (that's why Danny's POV is short). I'm also not too good with introductions. I was just trying to make the chapter make sense. I Hope you enjoyed this, I'm already working on chapter 2. IT WILL BE WAY BETTER