This is my first Phineas and Ferb Fanfiction, I don't own Phineas and Ferb. Disney owns them I just wanted to write this. Hope you like the story and please no flamers.

"Phineas, Ferb, time to get up and get ready for your first day of high school." Mrs. Flynn Fletcher said opening the door to the boys' room. Fortunately they were already awake and dressed. "I see you must be excited. Well breakfast is ready when you are." She said shutting the door.

"Ferb, today summer is finally over. I must say we had a lot of fun though." Phineas sighed. Ferb looked sympathetic.

"Yes, some of our best adventures." he stated pulling his purple vest over his white button up shirt Phineas pulled on his yellow and orange hoodie over his red shirt.

"Well let's go then." Phineas said running out the door, Ferb followed but rather slowly. "Are you ok?"

Ferb nodded, "I just feel like today is different."

"Of course it is, you two are entering high school." they looked over at their dad, he put the newspaper he was reading down. "This is a big mile stone for both of you." he stated.

"Yeah I guess." Phineas scratched the back of his head. Suddenly a knock was heard at the door, "I'll get it." he said running to the door. He pulled it open to see their raven haired friend and neighbor. She was wearing her normal pink dress and her hair was tied back.

"Wha'cha doing?" she giggled.

"We were just about to eat. Care to join us Isabella?" Phineas held out his hand, she took it gladly.

The three teens ate, said good bye to Perry, then quickly hurried to the bus. When they arrived at school they were greeted by two familiar faces, their friends Buford and Baljeet. Buford was giving Baljeet a wedgie, like usual, a bully and nerd moment. They stopped and caught up with their friends.

They walked to the front office and got their schedules. Baljeet had some advanced classes, Buford some lower ones, Isabella had different electives, but Phineas and Ferb had the exact same schedule.(A/N: There's a reason to my logic.)

~ History~

The last class of the day and one of the most boring classes ever. All five had the class together but they never liked history. It was a class where all you did was sit there and listen. Even Baljeet wasn't particularly fond of this class, he wanted to be able to move around and get involved. Buford was lazy, but he couldn't stand to have to sit there through a lecture. Isabella just had nothing to do but doodle which got boring. Phineas and Ferb had to be active and do something, more Phineas than Ferb.

"And so it is because of the twentieth amendment that when you turn 18 you may vote." the teacher read from his big book of history.

Buford through a note at Isabella, she answered and through it to Baljeet. He scribbled down something on it and passed it to Ferb, he did the same handing it to Phineas. He wrote on the paper and handed the note back to Ferb and made it's way back to Buford. He gave a thumb up to everyone before the note was snatched out of his hands.

"Buford, are you passing notes in my class?" The teacher asked, already knowing the answer. "Oh and I see Isabella, Baljeet, Ferb, and Phineas are also involved. Well you can go read the note in front of the class.

They stood at the front of the class room, Buford started with his original question. "Hey, who up for the mall after school?"

"I'll come." Isabella read next. (It goes in order for how it is passed.)

"I'd love to but Buford, you're not good at spelling."

"Sure."

"I'm in, it sounds like fun."

"This is not the time to socialize, it is the time to learn. This is the only warning you five get, next time it's a detention." The teacher fumed. "I show up every day and spend my time trying to teach you something. Why don't you pay attention and stop goofing around? It's not like some big huge news worthy person is going to crash through the ceiling!"

Suddenly the ceiling exploded leaving debris everywhere. (Luckily no one was hurt) When the debris cleared they heard moaning and could make out a figure climbing out from the mess.

"Are you ok?" Phineas asked, taking a step closer he saw she was had brown hair and eyes which were focused on his arm. He looked down to see a large cut on his forearm. He looked back at the girl but she was walking toward him. She placed her hand over the cut making it burn, then she let go and ran past him and through the door.

He looked back at his arm to see the cut was gone, the holes in his shirt and jacket were still there though.

"Phineas are you ok?" Isabella looked at his arm. "Your cut, it's gone?"

"It had something to do with that girl, we have to go after her." Phineas said rushing out the door, the others followed.

They stopped when they got outside the school, seeing the students running for their lives and the wind picked up enormously the five were shocked. Ferb spotted the girl and pointed it out to Phineas. She was fighting a man in a dark cloak with a sword. Phineas dashed over to her.

She spotted him and got distracted from the fight. He shot what looked to be black lightning, she was about to dodge when she realized something. He wasn't aiming for her, he was aiming for the boy behind her. She jumped in front of the attack getting hit with the full damage.

The girl fell to the ground and couldn't stand. The cloaked man grabbed her necklace and ripped it from her neck.

"Thanks for the game but I think I've won." His voice was scratchy with many dimensions to it. She grabbed his cloak before he could go anywhere. "You're still alive you won't be after I'm finished with you."

The two were engulfed in a dark shadow, it must not have been stable because it stretched and sucked in the group of kids observing the event.

~A/N~

Well sorry for the cliff hanger, I will try to write often. Right now I have so many ideas in my head, it's because I'm obsessing over this Phineas and Ferb Story "The Seer" by kicsterash. I really want to read it and the idea of it got me thinking maybe I could write my own Fanfiction so here it is. I hope you enjoy the story.