Disclaimer: I don't own the TMNT. I don't okay? One would think if I did I wouldn't be writing fanfiction...I mean, you never know, but I assure, I have no rights over the turtles...no matter how much I love them.

On another note, thanks so much for follows, favorites, and review! You've got no idea how encouragin that is for me!...Or maybe you do...it's really AWESOME! Thank you so much. I also feel kinda bad, because I meant to post this chapter yesterday...but...well...life. Anyway, Enjoy! :)

Oh and just so you know, I was writing this and it was around(SPOILER ALERT FOR THOSE WHO ARE BEHIND)...like...when Slash...hurt Splinter because...mind control and stuff...so, that may make stuff make sense.

Training Gone Awry

Later on the next morning, Leo, Raph, and Mikey were already lined up in the dojo ready for training. Donnie joined last.

"Morning Donnie, feeling better?"

"Yes, much." Donnie lied. His stomach wasn't hurting anymore, but the pain in his chest was back. He wasn't worried about it though. It came and went.

Splinter emerged from his room.

"Leonardo."

Leo went over to him and they talked. Once they finished Splinter went back into his room and Leo joined the others again.

"What was that all about?" Raph asked.

"Sensei is going to rest up a bit, let his leg heal. He put me in charge of training this morning."

Raph groaned.

"Great. What boring exercise are you going to have us do today fearless?"

Leo smirked.

"Actually, I was thinking last turtle standing."

Raph grinned and twirled his sai.

"Sounds good to me."

Everyone took out their weapon and stood in a square at the ready.

"Ready? GO!"

Raph immediately lunged for Donnie. He almost knocked him off of his feet but a quick back-flip maneuver saved him. Donnie groaned. He knew he wouldn't stand a chance with his chest hurting the way it was. It was getting hard to breathe, and he couldn't fight efficiently without breathing. Suddenly, Donnie's body felt increasingly hot. He heard a sinister cackle in the back of his head and his vision blurred. He blinked a few times to try and clear it up, and once he could see clearly again, everything was tinted red.

Raph charged at him again. Panicking, he cringed and squeezed his eyes shut. He heard a loud thud, and realizing it wasn't him who hit the floor, opened his eyes again. Raph was on the opposite side of the room rubbing his head.

"Ooh, nice contact on that one." He heard Mikey say behind him.

He felt himself dodge a swing of Leo's katana that he honestly wasn't even aware of.

"Guess it's just you and me Donnie." He said.

Donnie tried to back away, feeling way too freaked out to be fighting anyone, but nothing happened. He just stayed where he stood, and to his horror, he felt himself rushing towards Leo.

Then it clicked. He wasn't in control of his own body.

Donnie tried to call out to his brother as he saw himself swing his bo staff at him, but no sound left his lips. Heck, he couldn't even get his mouth to open. He attempted to make something, anything, move to his will. His tries were in vain. He just kept attacking Leo.

Leo charged at him again. Right as he was about to strike Donnie grabbed him, spun him above his head, and flung him across the room. Leo hit the wall and slid down to the floor. He shook his head and stared at Donnie in awe.

"Whoa…" Mikey whispered.

"Nice work Donatello, but a bit extreme." Splinter critiqued as he emerged from his room.

"Come, you will fight me." He gestured Donnie closer.

"Sensei, is your leg okay?" Leo asked, sitting down next to Raph and Mikey.

"I will be fine. Come Donatello."

Donnie tried to refuse. Scream, run away, anything but fight Splinter. He didn't want to.

He charged and jumped up, going for a head-shot. Splinter blocked him. Donnie circled him attempting blows at a ridiculously fast speed. Splinter blocked each one. Once he finally got a chance he tried to land an attack on Donnie, but Donnie dodged behind him and struck him on the back of the knee. Splinter flinched and in that second Donnie circled back in front of him, grabbed him by the robe, and flipped him over his head. Splinter flew across the room, landing not to far from the wall. Before he could recover Donnie ran up to him, bringing forth the blade from his staff. He brought it back for a finishing blow.

"NO!" He screamed at himself.

He squeezed his eyes shut and he felt his arm coming down. He didn't feel any contact. He opened his eyes. The red tint was gone. His arm had stopped mid-stab. Splinter was gazing up at him. Donnie could barely see the surprise in his eyes, but it was there. Donnie dropped his bo staff next to him and offered a hand.

"Sensei, are you alright?" he asked, his voice shaking a little.

"I…am fine." Splinter answered, taking Donnie's hand and hoisting himself up.

"As I said, extreme, but effective nonetheless."

Donnie didn't answer. He was too busy trying to calm himself down. The evil laughter echoed through his mind again and he shuddered.

"I will leave the remainder of training to you, Leonardo." Splinter announced.

"Do as you please."

"Hai Sensei." Leo bowed slightly. Once Splinter was back in his room everyone turned to Donnie, who fidgeted under their gaze.

"Dude," Mikey started. "That was intense."

"I think we should stop for today." Leo suggested. Everyone nodded in agreement. Raph and Mikey left first. Before Donnie could leave Leo grabbed him by the arm. He opened his mouth to say something, but when he saw the look on Donnie's face the idea slipped away. Easily sifting past the calm and indifferent facade he was putting on, Leo could see the fear and confusion racing through his little brother. Donnie liked it when he had an explanation for things. It made him feel safe, secure, and confident that he could figure out a way to deal with any situation. But Donnie obviously had no clue how to explain what just happened, and that scared him. Leo sighed and gave him a soft pat on the shoulder.

"I'm not going to pry. I'll just remind you that you can always talk to me, to us. We're here for you Donnie."

Donnie nodded and gave a little smile.

"Right, thanks Leo."

After that, Donnie disappeared into his lab and wasn't seen again all day.

End Chapter 3