Hey guys, I just realized. This story is going to be like…really long. I haven't even gotten to the half way point yet. o.o Okay, so their rooms might get changed around because if you know my TMNT is pretty much based off of the 2003 and 2007 movie, and I was re watching TMNT today and season 3 episode 9 (The episode is called Hunted.) showed their rooms.

Donatello's lab was beyond messy, tubes of different chemicals sat on the lab table, his desk had notes and pencil shavings scattered everywhere. There was a metal bin on the floor marked "WASTE" and balled up pieces of paper lay all over the place, the trashcan filled to the brim with paper. The only neat place in the chaos of papers and chemicals was a small wooden desk in the far corner. The only thing on the old desk was a file holder, and a few papers that were in a neat pile. This was where Donatello had been spending the past few weeks, trying to learn anything he could on Raphael's strange health problem. By now Raphael was having trouble seeing, hearing, and Donatello had realized a few nights ago, when they were on patrol, and his older brother was running a little behind them, panting, Raph was having trouble keeping up.

In all of this, Raphael did his best to act oblivious, and it was causing tension for them all, between Leo and Raph, and Don and Raph, which was something the purple masked turtle hated as Raphael had some sort of trust for him, and now because of illness he couldn't save that trust. If losing Raphael's trust meant keeping him alive, he'd deal with it. Of course Don hadn't made any progress and was just ruining his relationship with his brother. Whether he stayed at the lair or not the hot headed turtled just seemed to be getting worse, and it was causing their friendship to fall apart.

Currently, the purple clad turtle was sleeping in the swivel chair that sat in his lab, he had been working late- again- and had passed out halfway through the night, his head was laying limply on his arms that sat upon the only organized table. Donnie had been working nonstop every day and night, other than small bathroom and food breaks, he would keep working until fatigue claimed his body, and he passed out from sheer exhaustion. He knew his brothers were beginning to worry but he couldn't help it, he was the brains of their family, not only was he the plumber, electrician, and engineer, he was also the doctor. That meant fixing his family when they were sick or injured, and currently, he couldn't fix Raphael. By now desperation was kicking in and that meant his mind was coming up with all the ideas he could, and all other things were drowned by the idea of helping his brother.

"Donnie, wake up."

"Mnn…" His eyes too heavy to open, the brain of the household let out a small whine. "What?"

"You shouldn't sleep on your desk. Your drooling on your papers."

His head shot up and he winced at the kink in his neck, rubbing the back of it as he looked down at the slightly wet papers and frowning. "Great." He muttered, grabbing the papers and fixing the stack before placing it back down.

"Go ta bed."

He gazed at his alarm, the neon red numbers read 5:02 A.M. He'd only been asleep for about twenty minutes, "What are you doing up this early?" He asked his red masked brother suspiciously.

"I'm bout to go to bed, I was watchin' T.V and lost track of time."

"Sure you were." The purple masked turtle huffed, "I didn't hear the T.V."

"That's because ya had the lab door shut all night long, shellferbrains." Raphael said, hands crossed over his plastron as he glared at Don.

Guilt began to fill his heart as he looked at the protected look his brother had on his face, his glare and scowl hiding how he really felt. "Oh." He replied, his shoulders deflating.

"C'mon bro, go to bed. In your actual bed."

"But-"

Raphael pointed behind him to the steps, "If ya don't I'll kick yer ass to your room."

Now Donnie knew that the threat wasn't a joke, Raphael was usually very protective of them, he just had a certain way of…showing it. Which happened a lot. He sighed softly and nodded, dragging his feet across the lair and too his room. Once his was there he climbed the ladder that led up to his bed, and jumped onto the cushion. As he lay there, he heard the heavier steps of his older brother going up the stairs, the creak of his door opening, and then closing. Next thing he knew, it was silent again. Raph hadn't been lying. Now he felt like a jerk, he didn't even try to believe his brother.

He didn't have much time to linger on the thoughts however, as pretty soon he was back in the world of dreams. A soft smile spread across his face as things went back to the way they used to be, with all three of his healthy brothers.

The ringing was what woke him up, blaring in his ears no matter how hard he pressed his pillow over his head, so, with a bit of, or rather a lot of agitation, he jumped from his bed, snatching the plug out of the outlet. Just the way he wanted to start his day, as he walked downstairs, he saw that all of his brothers were already up, Mikey was playing a game, and Raph and Leo were sparring. Wait, what time was it exactly. "What time is it?" He asked Mikey who grinned.

"Dude, you slept all day, we were waiting for you to wake up for patrol."

"What?!" He yelled, eyes widening, Leo and Raph paused for a moment, looking over at him, but then went back to sparring at Mikey laughed.

"Yeah dude."

"Why didn't anybody wake me up?!"

"Cuz you never sleep bro." Mikey replied, his voice becoming a bit more serious.

"I do too…"

"If you pass out!"

"I need coffee…" Deciding to stop arguing with his brother, Don made his way into the kitchen, looking at the already full coffee pot. Still warm too, "Who made coffee?"

"Raph drank some."

The purple masked turtle nodded and made a cup for himself, looking over at his red masked brother, who was still sparring with Leo. Raphael didn't drink coffee. He hated it, the only time he ever did drink coffee was when he pulled all nighters. That meant he made it for him. Smiling as he sat down next to his little brother he looked at the television screen.

"How long have they been sparring?"

"For about an hour now." Mikey replied, sticking his tongue out of his mouth as he leaned to the right, in an attempt to help him turn in his racing game.

Taking a sip of the bitter, warm liquid Donnie smiled as the coffee warmed his insides and looked back over to his older brothers, watching them in fascination. They both made solid, smooth movements, not once hesitating. They moved on reflex, without a single thought about it, and he didn't understand how anyone could fight like that. Donnie had always thought out all the ways he could take out someone, he didn't have a natural reflex like them when it came to fighting, or sparring. As he watched his brothers move with ease as if they were born fighting, his shellcell went off. "Huh?" He said allowed, blinking and looking down at the caller I.D. April was calling him? "Hey April."

"Donnie! Have you seen Casey? He was supposed to be home about an hour ago, and I usually don't worry but he's not answering any of my calls…"

Ever since the two of them had "gotten serious" April turned into a worried girlfriend, and although it was amusing at times, it could be a tad bit annoying at others.

"I'm sure he's fine April, but we'll go check just to make sure."

"Thanks!"

He hung up after that, by now his older brothers had stopped their battle, and were looking at him, Mikey however was still playing his game. "April wants us to find Casey."

"Jeez, it's only ten. She's already worried?" Raph asked from where he stood, putting his sais in his belt.

Don shrugged, "Guess so."

"We might as well go find him then."

"But dude, I'm about to beat my highscore!" Mikey protested from where he sat.

Raphael slapped the back of Mikey's head, which resulted in him crashing and losing the race, "Bro! I was so close!"

"Oh well," The red masked turtle grinned, and Leo rolled his eyes.

"Can we go?" He asked his two younger brothers and Don sighed, nodding in agreement.

"The sooner we find Casey the better."

All four of them ran across the rooftops, going to all the famous crime places They stopped at three different streets that were famous for gang activity. However, Casey wasn't hanging around any of them, and there were no signs of any possible struggle that could have happened.

"Are you sure this is where he usually is?"

"Course I'm sure!" Raph barked at Leo, who sighed.

"Well he isn't here."

"So like, does that mean we can go home?" Mikey grinned, obviously eager to get back to his game.

"We have to find him for April." Don added, and Mikey sighed.

"Bro, it's Casey. He's probably out at some party or club."

"I guess you do have a point…" Leo nodded in agreement, and Don sighed. His brothers were probably right, Casey did have this thing with going off with out telling anyone.

"If he isn't home in the morning we'll start looking." Don spoke up, and his three brothers nodded.

Don got a call around three hours later from April. As soon as he saw her caller I.D he knew something was wrong and had answered it not a second later. It had took the purple masked turtle a few moments to understand what April had said, her talking so fast and all. Once he did though, he had told her they would be right there, told his other three brothers what was going on, and left in a rush to help his dying friend. When he got to April's apartment, Casey was asleep, and April was wiping the last of the dried blood from his skin. "How is he?" Donnie asked as he kneeled next to her, scanning the man who lay before him.

"He's stable." She whispered hoarsely, it was obvious she had been crying.

"I'm sorry April- we should have kept looking—"

"No- No. It's okay. There was no way you could of…." She covered her face with her hands, trying not to cry again.

Don rested a hand on her petite shoulder before sighing, "You try and get some rest April, I'll watch over him for now." He gave her shoulder a reassuring squeeze as she cast a glance to Casey one final time before heading to her room.

There was blood everywhere, on the fridge, counters, towels, and floors. April obviously had panicked when Casey got back, barely able to hold himself up from what she told him. He was still pale, and probably needed a blood transfusion. Not only that but considering his clothes- which were thrown in a corner- where covered in dirt and mud, there was chance of infection too. He sighed softly and decided to at least begin to clean the mess that surrounded him and Casey. He wet a clean towel and began to scrub the blood off the furniture as he thought about what could have happened to Casey. April had said she had been watching tv when he came through the window, as soon as he saw her he had passed out, and hadn't woken up since. Casey always seemed careful- not really careful, more like lucky- so was his luck finally wearing thin? Or did someone plan this?

"Yo Donnie!" His head snapped up, and Don blinked when he saw Raphael of all people leaning against the wall next to the window. How hadn't he heard him?

"You should be at home." Don stated as he looked back down to the bloodstain he was currently scrubbing away.

Raphael completely ignored his statement as he pushed himself off the wall, "That's a lot'a blood." He motioned to the scene in front of him and Don nodded.

"Casey's lucky April knew what she was doing."

"Hmm."

The bo master looked over to his older brother who was kneeling next to Casey, "He's tough." He stated, and Don smiled.

"He's a bonehead. Like you."

Ignoring Raphael's glare the purple clad turtle went back to scrubbing the counters. By now they were pretty much clean. Now all he had to do was find a way to get the blood out of the carpets. "Did he say who did this to'im?"

"No, and don't get any ideas." He retorted, turning his gaze to Raphael. He wasn't oblivious to Raphael, and it wasn't hard to tell what his ideas were when he was standing there, shaking like that. He was obviously mad. A mad Raphael meant rash decisions would be made, and an angry Raphael was truly the last thing he needed right now. "If you really want to help, grab a rag and start cleaning the bloodstains."

His older brother huffed, but grabbed a rag and kneeled next to Don, scrubbing the blood in the carpet. "Whateva." He grunted.

A small smile made its way on Don's face and he cast a glance at Casey, just to make sure he was still breathing, and okay. "So, where is Leo and Mikey?" He asked.

"Dunno. I left."

"They don't know you're gone do they?"

Raph smirked, " 'Course not."

Truthfully he wasn't that surprised, lately they had all made strict rules for Raph, and he was supposed to be in bed by now, or at least relaxing. Not running around the cold city. "Leo's going to be mad." Raphael shrugged at the statement, and went back to scrubbing.

Even though Donnie wasn't that happy with Raphael's choices- his brother did need to rest- he couldn't say anything. He knew that Casey was his red masked brother's friend, someone he trusted. So his brother would be allowed to break the rules- just this once. The floor was as clean as it was going to get, and he knew April would probably try to get a new carpet. He grabbed the dirty rags, and clothes, and threw them in a trash bag before walking back over to his brother's and Casey's side. "I want you to help me put Casey on the couch."

"Sure." Raph grunted, and nodded.

The youngest turtle in the room nodded back and wrapped the blanket that covered Casey from his waist down around his legs, lifting his legs. "Alright." He motioned for Raph to get their human friend's upper body and a few moments of curses and confused movement later Casey was on the couch.

That's when Leo and Mikey popped in, Mikey looked tired, and Leo looked pissed. Probably because of Raphael, Don thought, but didn't say anything out loud. "Hey Leo." He greeted, and waved to Mikey. He stood from Casey's side and walked into the kitchen. "What took you guys so long?" He asked, filling a pot with water for coffee.

"We would have come a lot sooner if we had known Raphael was here." Leo mumbled, and Mikey cringed when he saw Raphael glare his brother's way, the orange masked turtle hopping across the living room and into the kitchen, mouthing; "They're about to fight."

Maybe it was because he was upset that April had to deal with Casey by herself, or that Casey was hurt and it was his fault for not staying out later to look more. It could have even been that he was tired from lack of sleep, and found it annoying that his brothers had to fight when there were more important things. Like the injured man on the couch they were yelling next to, or the woman who lay in the room right across from this one that was sleeping, that had caused him to run into the living room, glaring at both his brother as he hissed the words, "Shut up."

Now, everyone knew not to mess with a mad Donnie. He was far worse than a mad Raphael, not in the sense that he could get violent, but the fact he held grudges. For a long time. He could name something they did as tots to make him mad and get them back for it today. No one ever knew when Don would attack, and that's why no one ever upset him. So both older brothers shut their mouths and just glared at each other instead. Don however, didn't think it was enough and stared at both of them. "Now, there is more important things then you're little argument going on right now. Like the fact Casey is obviously badly hurt, and we still don't know who did this. " He stated matter of factly, Leo and Raph nodded.

"For now we'll just have to wait until he wakes up to see if he can remember anything. April told me it's mostly just flesh wounds, and a sprain or two. No concussion- luckily." Don continued, and his older brothers listened intently, eyes locked on their vigilante friend- Mikey was in the kitchen, and had taken control of making Don his coffee.

"However, we don't know when he will wake up. He best thing to do now is have me stay here to watch him for the night, you guys should head back to the lair, in case he does remember anything. From the looks of his wounds, it was probably the Foot."

Raphael growled quietly, but before he could get into a fit Don quickly continued, "So! I need you to go home, and be rested incase he does remember something. They wouldn't just attack him for no reason, he was targeted."

"I swear when I get my hands on-"

"Now's not the time for an attitude Raph."

"Don't you start on me now Fearless!"

"I'm not 'starting on you' I'm just telling you, having an attitude right now isn't going to help anyone."

"Both of you, stop!" Don yelled over them, rubbing his temples and sighing.

They all ended up staying for another hour, before Leo, Raph, and Mikey left, leaving Donnie by himself in his friends' home once again. He got comfortable on the floor below Casey and sighed. Tonight was going to be a long night, he thought as he took a sip of his coffee. He would watch Casey tonight, and hopefully tomorrow he'd wake up.

I STAYED UP UNTIL WEE HOURS OF THE MORNING TO FINISH THIS FOR YOU GUYS. SO BY THE NEXT CHAPTER WE'LL BE HALF WAY THROUGH THIS STORY. I TRIED TO PUT MORE BROTHERLY STUFF IN IT. I'VE ALSO BEEN WATCHING MORE TMNT TO TRY AND GET THEIR PERSONALITIES RIGHT. HOPE YOU ENJOY R&R BABES.