The Secret (A Phineas and Ferb/Gravity Falls Crossover)

One

PHINEAS' POV

I woke up early in the morning. Looking at the window, I saw Candace and Stacy outside. I wondered where Ferb was. 

I went downstairs, and greeted Mom.

"Hi, Mom! Where's Ferb and Dad?" I asked.

"Oh. Phineas, dear, they took a little vacation." she replied, smiling, before asking "You know, Phineas, that I remarried, right?"

"Yes, why?"

"You wanna see your real dad again?"

I was excited. I mean, who wouldn't be excited to see their real parent? I've wished for years that we could really meet him and he would come back.

The problem was that Ferb could leave the family. I shook my head, confused. I sat down in the couch and turned the TV on. Maybe Ferb could stay. Who knows?

Candace entered the house. She heard the news.

"MOM!" she screamed. She wanted us to go to someplace Jeremy was. Jeremy is Candace's boyfriend, if you didn't already know. Coincidentally, that was the place we could meet Dad.

Minutes later, we went in the car and drove off.

Whew. This is the day. The day we will finally go to my first dad. The day we--

"Phineas, stop daydreaming out loud!" Candace shouted. Nevermind. Anyway the car stops, and we found ourselves in Gravity Falls, Oregon. Mom said that our original dad sent his kids (of course, from a different wife) here months ago, and is going to pay a visit. His name is now Paul Pines, but before, he was Paul Flynn. As we got off the car, a girl wearing a sweater opened the door. She had a llama pattern on her sweater, and also had braces.

"Hi, I'm Mabel. You must be Phineas. Come in!" she happily said. This could possibly be the best day ever!

I entered the room, expecting a lot of people, but the so-called Mystery Shack only had a few people inside. Mabel, who I already met, then a boy wearing a pine tree designed cap, a guy with a question mark shirt, an old man in a formal suit and a fez, and a girl roughly 21 years old. From what I heard from Mabel, the boy was Dipper, who likes mysteries. Soos was the question mark shirt guy, Great Uncle Stan was the old man, and Wendy was the name of the teen girl. I shivered when I heard the news. Gravity Falls had monsters. Real ones. Then, I suddenly realized:

Where's Perry?

***

Hey guys, Aj here!

I just wanted you guys to know that this story needs MAJOR improvements. I already changed some of the bits that make it ugly, and added extra information. Anyway, this is an alternate universe story where Weirdmageddon never happened (or hasn't happened). Also, Ford isn't here, but why? 

EDIT # 2: Aged up the characters to 16 yrs old instead of 12. Candace is now 21-ish.