Chapter 4

The whole gang was there. Ferb, Isabella, Buford, and Baljeet. Even Candace was there. But there was one person Phineas did not want to see.

Calvin.

All eyes were on him but Isabella was the first to speak.

"Thank goodness Phineas, your back! Where've you been?!" Isabella asked anxiously.

"Yeah! We've even made a machine to find you," Baljeet added.

"If that thing didn't work, I thought you would've ran away or something," Buford chuckled. But Phineas ignored all of them and locked eyes with Calvin's. It was like a lion challenging the other lion to win back the pride. Phineas' eyes were fierce and blazing with rage as all of a sudden he charged at Calvin and pinned him against the tree he was standing near.

Everyone was shocked.

"Who are you?" Phineas asked dangerously.

"I'm Calv-"

"WHO ARE YOU?!" Phineas shouted, now everyone was scared. The never seen the optimistic boy this angry. Ferb pulled at Phineas' arms once his shock was gone. "What are you doing?!"

"Here," Phineas shoved the printed papers to Ferb," I looked up your heritage using the DNA from your hair strand. Read it." Everyone read the papers under Ferb's grasp and gasped when they reached the part about his nonexistent siblings. Phineas turned back to 'Calvin'.

"I knew I shouldn't trust you," the young inventor hissed. He grabbed the scared boy's shirt and made him look at him in the eyes. "Who are you?!"

"I-I'm C-Calvin Fletcher," the boy stuttered. This only made Phineas more furious as he lifted his hand and punched the imposter in the face.

Once again, the group was shocked.

Phineas continued with the punches as he spoke.

"Who. Are. YOU!" With one final blow, Phineas tossed the bloody boy to the ground.

"M-my name is N-Nick Freeman," Nick spoke weakly.

"Why? How?" The redhead interrogated.

"I used a machine that shot Ferb and your mother and father to believe that I was a part of their life."

"You still didn't answer my question: Why?" Phineas impatiently asked. The others wanted to know the answer as well. Even Perry, their pet platypus, arrived to know what was up with the imposter.

"I wanted to re-replace you. You don't deserve a brother. I had a brother too but he didn't deserve a person with a gift like mine," Nick smiled wickedly. Phineas' eye twitched with fury but decided to hold it off until the right time. "What did you do to your previous brother?"

"The same thing I'm about to do right now with you… murder." Nick jumped up and punched Phineas knocking him back a bit but regained his composure.

"Alright. We'll just see who falls first," Phineas said as he charged at his opponent who did the same. If there was one word the described the fight:

It was violent.

The fighting boys were punching, kicking, and wrestling. They were bloody from each others cuts and injuries but they were not letting up. Phineas heard cheers and turned his head in curiosity.

It was his friends- no.

It was his family.

His focus on the cheers became an advantage to Nick as he pinned his opponent down and started choking him. Phineas tried to gasp for hair but his throat was collapsing under the pressure.

"You shouldn't have messed with me. Your weakness is all you are and like I said before, Ferb doesn't deserve a brother like you UGH!" Nick fell to the ground as he clutched his head in pain. Phineas gasped for air and looked up to see a hand waiting in front of him.

Ferb's hand.

With his help, Phineas came up from the ground and the both kneeled to Nick's level, both with pissed off expressions.

"No Nick. I'm not weak. You are. And you know what else? You're pathetic. You couldn't even kill me!" Phineas chuckled but his face returned with an angry frown.

"You used me in the wrong way Nick. Now you'll have to pay by none other than the Flynn-Fletcher brothers," Ferb smirked evilly. Phineas did the same. In one swift motion, the step brothers grabbed a hold on Nick's shirt and together, they knocked him out cold.

"I'm sorry for not believing you," Ferb apologized. His response was a tight hug from his slightly younger brother, which he returned. Once they pulled apart Phineas spoke. "At least you had my back until the end. That's what really mattered."

Ferb gave a thumbs up.

They both stood up from their position and turned around to see the shocked faces of the group, even Perry had a shocked expression.

"Sorry guys. Just had to take care of the… threat, I suppose," Phineas awkwardly told them.

"Woah Dinner Bell, when did you ever learn how to do that?" Buford asked in awe.

"I've always known, same as Ferb. But we decide not to use it until the time is right," Phineas explained.

"Ohhh! Nick is sooo busted! I'm telling mom! That boy is going down! DOWN, DOWN, DOWN! D-O-W-N, DOWN!" Candace yelled hysterically as she ran into the house.

"Oh Phineas! You were so brave!" Isabella yelled as she ran to Phineas and gave him a big hug. Only the inventor cried in pain from all the bruises and cuts. Isabella retracted and started apologizing immediately. "I'm sorry! I'm sorry!"

"It's alright Izzy. Just hurt from all these cuts and what not," Phineas chuckled. Isabella blushed a little because of the new nickname. "'Izzy'?"

"Oh, uh… I just thought I gave you a nickname. I could just call you regularly if you don't like it," Phineas said, with a hint of disappointment in his voice. Isabella noticed this and hugged him again only gentler that time. "No. I love it."

Phineas smiled as he hugged back.

"Phineas. How did you know Nick was not who he really was?" Baljeet asked as the two kids broke their hug.

"I knew when I first shook his hand," Phineas sighed. "When I took him into the restroom yesterday, he threatened me that he would do everything in his power to separate Ferb and I. He sabotaged my work and crushed my hands with the tool box. That's when I knew that I had to do something so I asked for some help this morning from Vanessa. Her dad is a … type of scientist that helped me figure out Ferb's heritage."

"Thank bro," Ferb said.

"No problem. Anything for my brother," Phineas said with the first grin he had in awhile. His smile was contagious as it spread throughout his family. He heard groaning behind him but Phineas knew who it was. He rolled his eyes and turned around.

"What? Ready for round two?" Phineas spoke threateningly to Nick.

"Y-your crazy man," Nick said frightened as he vigorously shook his head.

"Oh I'm the psycho? Weren't you the one that tried to kill me a couple of minutes ago?" Phineas crossed his arms, starting to get annoyed.

"You should go to a mental asylum. That's where you belong, not here," Nick said, getting up. Phineas was too quick though and pinned him against the side of the house. Ferb tied the murder's hands behind his back. Once he was done, Phineas gave one hard slam into the wall then threw Nick in the middle of the circle of friends. Everyone had an angry expression on their faces, like they were ready to kill.

"If I'll belong in an asylum," Phineas started laughing maniacally. "Then I'm taking you with me."

The cops were called after that and took Nick away. Though he told his enemy one last thing before he was pushed into the car.

"I'll be back, Phineas, and when I do be ready. It won't be as easy as it was today."

" I wasn't even trying," Phineas taunted.

After the police left, everyone went home, Isabella hugged the redhead once more which caused him to slightly blush but luckily it went unnoticed. Once she left, the two step brothers were left in silence. After a while, Phineas spoke.

"... I'm sorry."

"What?"

"I'm sorry that you had to go through that. It should have ended differently than it did. I shouldn't have acted the way I did but- I was just so angry. So much rage filled my thoughts that it controlled my actions."

"It's okay. I forgive you. I would have done the same if it was the other way around."

They smiled at each other.

"Thanks bro."

The end