The next morning the boys woke up and got ready for school. "Are you feeling all right Ferb?" His mother asked him and he nodded. "Are you sure? You look a little off." She said. Again, Ferb nodded and replied. "I've just got a bit of a sore throat." Linda passed him a plate of breakfast. "Just try not to talk too much." Ferb nodded and Phineas laughed. "I don't think he'll have a problem with that." He said, eliciting a glare from his brother.

They got to school and went to their respective classes. At lunch, everyone met up in the cafeteria. "I'm not looking forward to our presentations next week." Adyson complained. "I hate public speaking." She finished.

Buford nudged his elbow into Ferb's arm. "Hey, wake up." Ferb opened his eyes and shook his head. "You also fell asleep in English class. Didn't you sleep last night?" Ferb nodded and Phineas replied. "Yeah, he said something about a sore throat this morning though." Ferb picked up his uneaten lunch and left the table.

"I think you should talk to him." Isabella mentioned to Phineas before she took another bite of her lunch. "Oh, he'll be fine." He replied, with a wave of his hand. "Excuse me, I've got to... get some books from my locker for my next class." Milly said as she got up from the table.

Once Milly was out of earshot, Adyson spoke up. "I think she's got a thing for Ferb." This caused almost everyone to start laughing. "I don't think so, she's working on that geography project with him." Phineas said. Adyson stood up. "Then I'll go ask her." She said and left.

Isabella looked around the table, "So, what's everyone doing this weekend?" she inquired. "I'm starting a new training session at the gym." Buford replied. "I've got a fun-filled weekend of studying." Baljeet said. Ginger, Katie and Holly didn't have any plans yet. "My Fireside Girls are going on a nature hike Saturday." Gretchen answered between bites. Isabella turned to Phineas. "Do you have any plans this weekend?" He looked at her and smiled. "Actually, Ferb and I are going to retrofit Candace's car. She's wanting..." He started before Isabella interjected. "That's nice."

After school, Phineas and Isabella were walking home together. "I wonder what happened to Ferb, I didn't see him all afternoon." He said. They turned the corner onto Maple Drive and Isabella noticed that Mr. Fletcher's car was in the driveway. "Your father's home? He's never home this early." She observed and they continued walking toward the house, up the driveway and through the front door.

As Phineas and Isabella were taking off their shoes and jackets, Lawrence stepped into the front entrance. "I'm sorry Isabella, you'll have to go home." He said quietly. Phineas looked worried. "What's the matter?" Lawrence placed his hand on his son's shoulder. "Ferb's a little under the weather, he came home a few hours ago."

Isabella started putting her shoes back on. "Phin, would you like to come over to my place for a while?" She asked and he looked to his father who nodded. "That would be fine, just be home for dinner." Phineas smiled. "I will Dad." He put his shoes back on and the pair left.

Phineas came home after a few hours, took off his shoes and jacket and started to head upstairs. "Phineas, where are you headed?" His mother called out from the kitchen. "Just to my room, I need to finish my homework." He answered as Linda came out of the kitchen. "Sorry dear, you'll have to use the den. You'll also need to either sleep in Candace's room or downstairs. Ferb's contagious right now. You can't go in there. I'll get you some clean bedding after dinner." She said.

Phineas cast a worried glance up the stairs. "What does he have?" He inquired. Linda shook her head sadly. "He's got a flu." She replied and went back to preparing dinner. Phineas went into the den, pulled out his phone, sent a text to his brother then started his homework.

"Dinner!" Linda called out to the household and almost everyone came to the table. Candace came into the dining room. "Hey Phineas, where's Ferb?" Lawrence passed her the casserole dish and answered. "He's sleeping." She took the offered dish then looked to her mother. "Do we have to wait for him to show up or do you want me to wake him?" Linda shook her head. "Don't wake him, he'll wake up when he's ready."

Phineas decided that he would sleep in the den. He stayed up a while doing his homework and eventually found himself peckish. He went into the kitchen to grab himself a snack and when he turned round came face to face with Ferb. Phineas couldn't tell if Ferb was awake or not, his eyes were glazed and he moved more out of reflex than with actual purpose. "Ferb, what are you doing?" Phineas inquired and got a chill down his spine when Ferb's eyes shifted to look at him. The green-haired teen didn't actually say anything, but his stomach started to grumble. "Oh, you're hungry?" The shorter brother asked and Ferb nodded.

Phineas indicated that his brother should just sit at the table. "I'll see what I can find. I don't think there were any leftovers from dinner..." he said as he poked his nose into the fridge. "Oh, here we go... chicken?" He said as he pulled the plate out of the fridge and showed Ferb, who shook his head and placed a hand over his throat. "Your throat hurts?" The redhead inquired and received a nod in return. "Does anything else hurt?" Ferb nodded again and held his head in his hands as he placed his elbows on the table. "Everything hurts." He whispered then winced at the pain that caused. Phineas put the plate back into the fridge. "Would you like some soup or some..." He looked in the freezer. "Popsicle?"

"I'll get him something; you just head off to bed." Lawrence said as he stepped into the kitchen and placed his hand on Ferb's back.

Phineas started leaving the kitchen when he turned around. "Feel better." He called out. Ferb nodded and started coughing. The redhead went back to the den.

Friday was uneventful for Phineas, as was the weekend. Ferb was still not feeling well, though on Saturday and Sunday he came downstairs for an hour or two... to prove he was still alive; he didn't have the energy to help his brother fix up their sister's car. "That's okay Ferb, we'll fix it up next weekend." Phineas encouraged and Ferb weakly nodded his head before shuffling his way to the stairs. Once there he paused a moment, to collect his strength, then made his way up to his room where he collapsed into bed coughing.

Phineas turned to his sister. "Candace, is he going to be all right?" He inquired worriedly. She tried to smile but faltered. "He'll be fine." Phineas noticed the discrepancy between her words and her expression. "Thanks Candace, I guess I'd better start working on your car then." He replied unenthusiastically and left for the garage.

Candace looked into the kitchen, to make sure her mother was busy, then went upstairs. She quietly knocked on her brothers' bedroom door, then entered. "Ferb?" She whispered as she crept in and closed the door behind her. "Ferb?" She called again as she approached his bed and laid her hand on his shoulder. She noticed that he had fallen asleep again. With a sigh, she sat down beside him and placed her hand on his forehead a moment then moved his hair out of his face. "I know it's not your fault, but Phineas is just not himself without you. You've got to get better."

Candace sat with her step-brother for a while just talking to him as he slept. It was very sudden, Ferb started choking. He then turned onto his side and started coughing violently. She sat beside him and placed her hand on his back. "It's okay, you're okay." She whispered. It took three minutes, Candace watched the clock, for him to stop coughing and catch his breath.

Ferb finally started to breathe normally. He then pulled the covers over himself. "Thanks Candace." He whispered as his eyes opened slightly. "Not a problem Ferb. How do you feel now? Better?" She inquired and he shook his head and a couple of slight coughs tried to escape. "I feel as though I've been clobbered by a wrecking ball." He said hoarsely and suddenly he started to shiver uncontrollably. Worried for her brother, Candace tried not to panic. "What's wrong?" Ferb continued to shiver and replied. "C-c-c-cold."

Candace sprang from the bed and reached over to Phineas' bed and took the covers and draped them over Ferb. She then went to the linen closet and pulled out a few more blankets and draped them on him as well. "How's that? Better?" She asked and felt a little relief when she noticed he'd stopped shivering. Now he was just sleeping.

Candace went downstairs and looked into the backyard. Phineas and his friends were there trying to build something. Candace couldn't tell what it was, surprisingly, she didn't care. "Mom, I'm worried about Ferb. He's sleeping now, but just a few minutes ago he was shivering." Linda put a cup and a bowl on a tray. "I've got some errands to run. Do you think you can take this up to him. He needs to eat something, he's only had half a bowl of soup and half a piece of toast in the past three days. Wake him up if you have to." Candace nodded and took the tray.

Linda stepped into the backyard. "Phineas, can you come here for a moment?" Phineas looked over. "Just a minute Mom." He said then turned to his friends. "I'll be right back." He then went over to where his mother was standing. Linda smiled to the group of teens in the backyard. "Remember, your brother's still not well. You can have fun, just keep the noise down. I've left some ice cream in the freezer and the cookies are in the cookie jar. There's juice and soda in the fridge for everyone. I'll be back later." She said. "Thanks Mom."