Important! If you have NOT read the story, "Phineas and Ferb: School Days A new series" yet, I highly recommend you read that before you read this. I've decided to put this message up to avoid any confusion.

Chapter 1

Isabella walked up to Phineas Flynn and asked him sweetly, "What cha' doin'?"

"I'm so glad you're here, Isabella!" Phineas exclaimed. "I just finished building our dream castle where we can be together forever!"

A rainbow bridge appeared in front of the two. Then, a beautiful white unicorn pranced over. Phineas got on and helped Isabella up as well.

"Happy Valentines Day, Isabella."

"Oh this is the best Valentines Day ever!" Isabella gasped.

They arrived at the magical palace that Phineas had built.

"One last thing. A gift for you, my love." Phineas handed Isabella a small pink package. She opened it and inside was a digital clock! The alarm went off. Beep! Beep! Beep! Beep!

"What?"

Isabella woke up. She sat up in her bed.

"Oh. It was just a dream," she said to herself. "But it's Valentines Day!" She jumped out of bed and quickly got dressed and brushed her hair.

"Today, I'm going to ask Phineas to my Valentine. But how should I do it, Pinky?" Isabella asked her Chihuahua.

"Hmmm… Maybe I should leave a note on his locker. Kind of old school, but soooo romantic! Soooo mysterious! It'd be perfect!" Isabella said dreamily.

Pinky barked happily in reply.

Isabella went to school early. She sealed her envelope with a sticker and a kiss and then stuck it on Phineas' locker.

Later, Phineas and Ferb walked to their lockers.

"Really, Ferb? I never knew that! Huh… Well, I guess that's why they call it- Hey! What's this?" Phineas said. He took the pink envelope off of his locker. He opened it up.

He read aloud:

Dear Phineas,

Will you be my valentine? I know it's kind of a sudden thing, and I know it's kind of cheesy, but I really want to know. This is kind of hard for me to write because I'm trying to make this as awkwardless as possible. Is that even a word? Hmm… I should look it up in the dictionary. Well, I know what you're going to do today. You're going to reply to this letter!

Secret admirer

P.S. If you want to respond and want to find out who I am put a reply on locker 117. Please do it!

Phineas looked at the letter strangely. He said, "Well, that was written really funny. The person was probably just nervous. I have no idea whose locker that is. Ferb, I know what we're going to do today. We're going to be detectives again! I know it's kind of against the code, but this'll be fun! Especially when we already have our first clue!"

Phineas sniffed the letter.

"It smells like vanilla. Better write this down."

Ferb took out a piece of paper and started scribbling all over it.

Little did they know, one of the fireside girls was standing around the corner listening in…

The girl down a few hallways and met up with Isabella and the rest of the troop.

"He's got the letter and he's going to try to figure out who it is!" she cried.

All of the girls squealed.

"Is he going to leave a reply?" Isabella asked excitedly.

"Actually, he's setting up a whole detective thing to figure it out."

All the girls let out a disappointed, "Awwwww…"

"Shouldn't you just to tell him, Isabella?" Holly asked.

"I don't know. It's not very romantic when I just tell him. I want to keep it a mystery. Knowing him, he's going to figure it out. This is so exciting though! Eeeep!" Isabella said.

The girls squealed again.