Disclaimer: Phineas & Ferb belongs to Dan Povenmire, Jeff 'Swampy' Marsh and Disney.

Sorry that I haven't uploaded in a while, been preoccupied with school issues. While I try to sort out my life, here's the first official chapter for your enjoyment.

3 Days Later

Phineas awoke to what should have been another extraordinary day, but this was anything but. His normal cheery and imaginative attitude was all but extinguished. He slowly made his way out of his bed, being careful not to wake Perry or Ferb and crept down the stairs and into the kitchen. It was 6 in the morning and he had been waking up this early every day since Isabella stopped showing up every day. He didn't understand why she wouldn't come outside anymore. Every time he went over to check on her, her mother refused to let him in, saying it was his fault. She wouldn't tell him what was wrong but every time she saw his face, it was like she was to burst out in tears. He had kept this from his mom in case whatever was wrong with Isabella was his fault. He thought, for a second, that she could be pregnant, but the thought was completely washed away once he realised how stupid that was. He didn't even believe in girls having 'cooties' in preschool. But Isabella's mom's behaviour was similar to the people he had saw in dramas on TV who were in similar situations. He had no clue on what was happening over the road and he hated not knowing anything. As he poured his cereal into a bowl, he didn't notice Ferb enter the room and sit down at the table.

"Is that for me?" he asked sarcastically as Phineas turned around.

"Ha, ha" he replied with the same level of sarcasm. "Here, take it." He put the bowl on the table and slid it towards his step-brother.

"What? No milk?" he said, continuing his sarcastic chat with his brother.

"I'm not doing everything for you today." Phineas' tone went from sarcastic to guilt. Ferb then went to get the milk out of the fridge as Phineas started to pour his cereal into another bowl. As they both sat down, Ferb noticed that Phineas looked more upset than usual.

"You gonna help us today, or are you gonna sulk in your room again?" he said raising his eyebrow.

"You know I don't do that anymore." He said pouring the milk into his bowl.

"What, the former or the latter?"

"Both" Ferb, knowing that small talk wasn't going to get him anywhere, proceeded to get right on topic after he took his share of milk.

"You know it isn't your fault." Phineas looked up from his cereal.

"Yes." This single note reply was enough to spring Ferb from his seat.

"Then why don't you do something." He tried to contain his frustration as the Phineas he knew wouldn't give up on anything or anyone.

"I have." He replied, matching his dull tone from before.

"Then why doesn't it sound like you have?" Phineas sprung to his feet in anger.

"BECAUSE!" he began to yell but to he knew that yelling wouldn't accomplish anything. He began to calm down "… Because, I don't know what to do. I don't know what to do Ferb, and its killing me."

"Go to her."

"How? Her mother won't let me in."

"You have to keep trying, for her sake as well as yours." Phineas let out a sigh of defeat.

"I'll try, but I doubt it will work." Phineas then picked up his bowl of cereal and proceeded to walk back up to his room. As he walked out of the kitchen, Ferb heard him mutter under his breath; "She must hate me."

Over at Isabella's house, her mother was cooking scrambled eggs for breakfast but it was not for her. For 3 days, her daughter had locked herself in her room, unwilling to communicate with anyone unless absolutely necessary. The only thing she asked from her mother was to respect her decision and leave breakfast, lunch and dinner outside her door. Her mother did not know what had happened to her, but it upset her to know that her 'Isa' decided to lock herself in her room, for whatever reason, and wanted to be isolated from her friends and family. She plated up and poured some orange juice into a jug and put them and a small cup onto a tray and took it to her room. She stopped at her daughter's door for a few seconds and then knocked 3 times.

"Isa, your breakfast is ready." She waited for a few more seconds before 3 knocks came from the other side of the door. Vivian couldn't stand it as she burst out in tears and ran into the living room to drown her sorrows. She wanted to get her help but if she did, she could hate her own mother. 'No child should hate their parents' she thought while getting up from the couch and trying to compose herself.

A few minutes later, Vivian had steadied herself while watching daytime television. She needed to distract herself from her upsetting predicament. However, a knock at the door came too early for her and she couldn't bring herself to open it. The knocks continued for a minute before Vivian got up, driven by anger. She flung open the door to find someone she had now begun to hate. She went to slam the door, but he wedged his foot in the door. He would have screamed, but he needed to see Isabella so much that he hardly noticed the pain.

"Wait! Please Mrs Garcia Shapiro…" he said, pleadingly.

"What is it Phineas?" she replied sharply.

"Isabella."

"Just stop right there! You may not see my daughter, under any circumstances, so just go home!"

"Why?" He had said this many times before, but this was different. She looked at him, really looked at him. He was determined and confident, something she thought he could never be in this situation. "Just tell me why." She looked at him and decided to tell him the honest truth.

"Look, I am just as much in the dark as you are but…"

"Then let me see her!"

"… I know that if I let you near her, it would destroy her." She couldn't look at him anymore but only had one last thing to say before she closed the door.

"Go home…for her."

As the drama and emotions build, the chapters will become longer, so forgive me if you feel this was cut short. As always, let me know what you think and be prepared for the next chapter when Phineas and Ferb plan their next move. Also, who will stop Doofenshmirtz's latest scheme when Perry is given a different mission?