Ok this is pretty much the same story as the first chapter but with a different ending. By the way: alternate dimension!

I don't own TMNT

"I don't get it," Mikey said, staring at the paper Donny was showing them.

"It's simple Mikey it's just F=ma and E=mc^2," Donny said with a sigh.

"And what's the point?" Raph asked with a sidelong glance at his punching bag.

Donny frowned and let his hands fall to his sides, "Just forget it, I wouldn't think you guys would understand the factions that manifest reality."

"Whatever dude," Mikey said, turning back to his video game.

Raph grunted and walked back to his punching bag. Donny glanced at his sensei's room and shook his head. No way, he wasn't even going to try to talk this out with him. After a hopeless glance at his immediate younger and older brother Donny silently slipped back into his lab. He set the paper down on one of the tables and dropped down into his computer chair. He sighed and reached for a piece of shale rock he had sitting on the desk. It was four inches thick but felt so unstable and weakly constructed. Turning the shale over and over in his hands he sighed again.

He finally stilled and picked up a small gavel to ship of a piece of the stone. He rolled the smaller piece over and over in his hand as he put the larger stone back on the desk. He tossed it lightly, the stone simply falling back into his hand every time. He glanced up and over to the bulletin board he had hanging a few feet away. He turned and hit a button on his computer. Glancing at the screen and over at the camera mounted on the side wall he took a deep breath. His eyes locked on the bulletin board and he threw the small stone at it. He watched and he felt fear suddenly grip his heart as the stone shattered.

After regaining his composure he turned back to the computer and replayed the video from the camera. He gulped as he saw the stone shatter for a second time. He typed in commands to recover the speed data and mass of the small stone.

He muttered the results and wrote them out on paper. He was determined to do it all by hand, not trusting his brain since he could make a mistake, another foolish mistake. He scowled at the data and wrote the equations above.

F=ma

E=mc^2

He then just stared at the numbers. His hand was right there with a pen. Ok, maybe he should use a pencil. A pen couldn't correct mistakes. He slipped the pen into a cup filled with different writing utensils and grabbed a normal pencil. Setting his hand back onto the paper he froze yet again. He growled a bit, the numbers were right there, the equation was above, he had a pencil and erasers to fix mistakes so why couldn't he just start solving the problem!

He just sat and stared as the world around him seemed to just fade away, darkness surrounding him. A sudden movement brought him out of his trance. He glanced over to see his eldest brother in the doorway.

"Don are you ok?" he asked, walking into the room.

"Leo, you're supposed to be resting, in your room, not walking around didn't I clearly explain that walking around could apply-"

"-Uncomfortable pressure to my spine. I know Don, I always listen but I haven't seen you all day."

"All day?" Donny questioned, glancing at his clock.

10:00pm

Donny's head fell, "Sorry Leo."

Donny put down the pencil and slapped his forehead, he was supposed to have tested Leo's heart rate and blood composition hours ago!

"Just sit down, I'll get everything," Donny said as he pushed himself to his feet.

"You look like you need rest," Leo said, sitting in a chair resting his bandaged arm on one of the tables.

As Donny was gathering his medical supplies Leo glanced at the paper on the table and then over at the paper on Donny's desk.

"What's with Einstein's and Newton's equations?" he asked.

Donny slightly smiled as he made his way over to Leo, "Well at least you know their names and can recognize the equations."

"They're not that difficult," Leo said as Donny took out a needle, "Einstein's theory of Relativity is simple, Newton's second law of motion is even simpler."

"Well, it is at least to me, I can't seem to make Mikey or Raph see though," Donny said as he cleaned Leo's arm with rubbing alcohol to eliminate any germs that could enter the small hole going to be made by the needle.

"Small things like that will come in time Don," Leo said, raising his other hand to rest on Donny's shoulder.

"At least you can understand me," Donny said sadly with a sigh, "Without you here I'd probably go insane with no one to talk to."

"So what's with the shattered stone," Leo asked, motioning towards the shattered stone on the floor.

"Just an experiment," Donny mumbled but Leo caught the slight shiver and fault in his voice.

With a slightly shaking hand Donny reached for the needle his mind remembering the stone as it shattered against the board. Leo reached out and pulled his hand back.

"Don, what's bothering you?" Leo asked, "You've been in here for hours, you probably haven't moved."

"It's nothing Leo," Donny said.

"That's a lie Donatello and we both know it," Leo said, narrowing his eyes a little.

Donny sighed, Leo always referred to him as Don or Donatello. Donny had just become default with their friends but Leo rarely if ever called him Donny. He knew why, he had told Leo years ago that the name made him feel insecure. Donny, was the name of a young child. He couldn't go by that name if he wanted people to take him seriously. So Leo had started just calling him Don, a more mature name. Sometimes though, he wished Leo would just call him Donny so he could be a little brother again.

Donny shook his head and reached for the needle again. Leo reached out and grabbed the needle from him. Donny looked up in shock at Leo, did he not trust him? Just because he was a little shaken up didn't mean he still couldn't be a doctor.

"It's not that I don't trust you," Leo said, as if reading his thoughts, "I just think you need to explain whatever it is you're feeling."

Donny laughed shortly, "And I thought I was the doctor."

Leo sighed and put the needle down, glancing at the paper again, "I'm not trying to be a doctor, just a brother."

After a short silence Leo got up and walked over to Donny's desk, pulling the paper and pencil with him as he walked back to his little brother.

"I don't see why you can't finish this. Heck, even I could do this in my head," Leo said setting the paper and pencil down.

"I just don't want to make a mistake," Donny said, looking at the figures as if they were in an entirely different dimension beyond time and space.

Leo looked at the shattered stone again and then raised his hand to rest on his shoulder, his fingertips lightly touching the edge of his shell.

"Is this experiment about yesterday?" Leo suddenly asked.

Donny's breath hitched in his throat. Leo frowned and his eyes softened, yes, that was indeed it.

Leo held out the pencil, "Come on, you can finish it."

Donny took the pencil, "I know I should be able to this in my head but-"

He clamped his eyes shut and shuddered. Leo placed his hand on Donny's.

"Come on, it's easy, the mass times the acceleration will equal the force."

Donny forced himself to write out the figures as he mumbled and tried to focus.

"Good, now for Einstein's theory," Leo said with a calm and patient smile, "The mass times the speed of light squared equals the energy."

The equations annulated and figures printed, with no eraser needed, Donny dropped the pencil and only watched as it rolled away and fell off the table. Neither bothered to reach for it as it rolled a few inches away from them. Leo glanced around uneasily at the dark room. While he liked hiding in shadows a whole world of them didn't seem right or healthy. He preferred the soft glow on candlelight as shadows danced across the wall of the room. He shook off the thoughts and stood up to face Donny's downcast gaze.

"Don-" Leo started.

"No," Donny said in a quick voice, "Leo, please just let me…"

He trailed off.

'be a little brother.'

The words were unspoken but Leo still smiled at the invisible echo. The blue banded turtle reached out and placed a hand on Donny's shoulder.

"I'm ok," Leo said slowly, "You did all you could."

Donny glanced up at the empty air and sneered.

…yeah, he did all he could.

"Yeah right Leo," he mumbled before tripping back to his desk, utterly alone.

Wow, that was like, depressing at the end.

Oh well! ^_^

~Moonsetta