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Retreat

"No, but we have an idea. Sensei said that-"

Leo didn't bring his katana blades with him when he went into Donnie's room for safety purposes. He left them in the confines of his own room, far enough from Donnie's reach since he never left his own.

Clearly not far enough,

For Donnie was holding one at the ready as he rushed past the open doorway.

And as April had described over the phone,

His eyes were glowing red.

Leo forgot about the phone, dropping it as he rushed out behind Donnie.

A terrified scream pierced the calm quiet in the lair.

That was Mikey's scream.

When Leo got to the den, he was relieved to see Mikey on his feet, but relief didn't have the time to settle in before shock and fear flooded in after it.

Mikey, who had been asleep on the couch, was trembling in the corner of the room, one of his nun chucks held out in front of him. It didn't appear deep, but there was a small slit on his upper right arm. A trickle of blood slowly oozed from it.

Donnie was inspecting the blade of Leo's katana. The red glow of his eyes reflected off the steel of the blade as Donnie held it up to his face. His mouth twisted into a sinister grin.

"You dodged. Next time you won't be so lucky." He stated, using the same tone one may use when speaking to an insect, or someone they held at the same status.

It sounded as though two people were talking at once. One voice faintly resembled Donnie's. The other was deep and emotionless. It sent chills up Leo's spine.

Before anyone could blink Donnie was in front of Mikey, who screamed again out of surprise. Donnie swung, but Mikey dodged at the last second, this time Donnie didn't stop. He changed his direction and used the katana to trip Mikey, leaving a thin cut on his legs. Mikey tried to get up and run away but Donnie slammed his foot on his shell, pinning him down. Mikey slammed his palms on the ground as he desperately tried to get away from Donnie, who merely smiled at his frantic little brother. He positioned the sword once more, tension building in his arms ready to strike a frighteningly powerful blow.

Leo flung himself in the path of the swing and caught the blade in his hands.

"DONNIE! SNAP OUT OF IT!"

"You're rather impatient. You can't even wait for me to finish off your brother before you rush to your own death."

"DONNIE THIS ISN'T YOU! TAKE CONTROL BACK!"

"Foolish turtle…"

Donnie wrenched the katana from Leo's hands. Leo winced as he felt his palms get sliced open, blood promptly running down his arms.

"Donnie…"

In a split second, the grin vanished from Donnie's face. He blinked, the red quickly faded from his eyes, and for a second there was nothing on Donnie's face but pure terror.

A battle cry erupted from behind Leo. Raph rammed into Donnie, sending him flying across the room. He hit the floor and rolled until the wall stopped him with a loud bang. Donnie lay on the floor motionless.

Raph stood in front of Leo and Mikey, his sais drawn.

"Raph wait!"

Raph looked over his shoulder back at Leo.

"What happened?"

His voice was quiet, but Leo could hear the raging angry flames behind them. He opened his mouth to explain, hopefully to try and calm Raph down, but Donnie stirring distracted him.

Donnie slowly pushed his upper body off the ground. He held his head and grimaced, then as he seemed to realize something, he whipped his head towards the other three.

He studied Raph's face and cowered a little, clearly frightened of Raph's calm but obviously infuriated expression. He looked behind Raph at Leo. He slumped and let his gaze fall to Mikey. Donnie stopped breathing. He pressed himself into the wall. His mouth opened and closed as if he wanted to say something, but couldn't. Tears bubbled up in the corner of his eyes.

Donnie jumped and sprinted towards the subway tunnels. Leo and Raph followed.

Before they had even gotten past the turnstiles Donnie was starting up the Shellraizer.

"Donnie!" Leo called. But it was too late. Donnie floored the accelerator and sped away.

Leo's first impulse was to follow him, but instead he shook his head and turned to go back to Mikey, motioning for Raph to follow.

When they got back Splinter was at Mikey's side, carefully wrapping a bandage around his arm. Leo dropped to his knees beside him.

"Mikey are you okay?"

Mikey was shivering slightly, but he turned to Leo and gave a small smile.

"Yeah. I'm okay. Just a little…" Mikey trailed off, He shook his head and smiled again. "It's nothing serious."

His voice was trembling. Leo wasn't convinced, but he left it alone.

"Sensei."

"Leonardo, whatever is inside of Donatello will no longer wait. It is making its move."

"Well what do we do?"

"Wait, what do you mean 'whatever's inside Donnie'? What's going on?" Raph asked.

"Donnie's possessed." Leo replied bluntly. "Whatever or whoever is possessing him is the reason why he attacked Mikey and why he hurt April, He's being forced to do it. He locked himself in his lab and his room...and he tried to kill himself...to protect us."

"...he hurt...April?" Raph repeated, clearly dumbstruck. Leo ignored his question and turned his attention back to Splinter.

"Sensei we have to do something."

"You are right. You must find Donatello and bring him back. After that, we will find a way to relieve him of the spirit."

Leo nodded.

"But...you will not do so right now. Give me your hands Leonardo."

Leo bit his lip and held out his hands. The bleeding had stopped, but it still didn't look too good. Sensei pulled a cleaning wipe out of his first-aid kit and began to clean the wound.

"We can't wait Sensei. The spirit isn't."

"You are right, but rushing out to follow him this instant is not wise. You must give your wounds time to heal."

"...Can we go tomorrow? At least by then they'd be bandaged."

Splinter sighed, but nodded.

"You may."

Leo nodded and sat quietly to let Sensei bandage his hands.

"Leo?"

"Yes Mikey?" He was glad Mikey's voice had regained its usual strength and cheery undertone.

"I hope Donnie never decides to be a bad guy. He's terrifying when he's evil."