A/N: Eclipse belongs to GeekyCookie1. Mara, Zane, Calista, and Tyson belongs to MariChat3.

Enjoy!

"Like I said, you didn't think that the kranng, the Foot Clan, Shredder, Soren, Cameron, or even Jake were the only enemies we have, right? Not even close."

BOTH HENRY AND Leonardo shifted nervously as they stood before Splinter. "I don't know, Master Splinter. This doesn't seem fair." Leonardo said.

"Agreed," Henry said while holding the white cloth. He and Leonardo had been ordered to spar, but the only difference was that Henry would be blindfolded.

"I assure you, it isn't." Splinter replied.

Henry and Leonardo only shrugged at each other, before Henry lifted the white cloth and tied it around his eyes. His ears prickled at the soft shring sound of Leonardo unsheathing one of his katanas, then he heard the sound of footsteps, signaling that Leonardo was moving closer. He waited, unmoving, until he heard the break in the footsteps and the quiet grunt of Leonardo jumping at him. He dodged aside, and heard the thud as Leonardo's katana hit the floor, followed by a few fits of laughter from the sidelines.

"Oh, man."

"A swing and a miss."

"Blind fighting is more than honing your other senses. It's about perception, and giving the illusion of control." Splinter explained, as Henry carefully circled Leonardo, his supernatural senses tracking the mutant turtle's movements.

Henry heard the quick beat as Leonardo sped up and the swish of his katana. He ducked, dropping into a roll and springing easily back to his feet.

"You may think you have the upper hand in the situation," Splinter said. He paused as Henry heard Leonardo's katana swing again. He shifted aside, grabbed the mutant turtle's wrist, and flipped him over his shoulder and onto the floor. "But, you do not." He finished.

Laughter bursts from the sidelines as Henry reaches up and takes off his blindfold.

"Looks like someone needs a shower." Michelangelo jeered.

"How's that floor tasting, Lame-O-Nardo?" Raphael called.

Throughout the laughter, Splinter came up behind them and smacked the back of their heads with the handle of a sword. "It is not hard to sense loudmouths. Well done, Henry."

Henry gave a small nod at him before he walked over to Leonardo, holding out his hand. Leonardo gladly took his hand as Henry helped him up.

Then, at a sudden grunt, everyone turned to Splinter as he clutched his head, his eyes glowing red. "You insolent children! You... turtles! You will all...!" He lifted the sword to strike the teens, then hesitated. His eyes returned to normal as he seemed to snap out of it.

"Master Splinter, are you alright?" Leonardo asked.

Splinter fell to his knees. "I am sorry, my children. This is—something is wrong. I must meditate. We will continue this training another time."

The seven teens exchanged a look as they headed for the doors.

"Yo, did you see that? Sensei gave me the crazy eyes." Michelangelo said.

👑👑👑

A FEW MINUTES after the incident in the dojo, April, Casey, Mara, Zane, Kaz, and Calista had arrived at the lair as everyone was sitting at the table in the kitchen. Michelangelo, however, was... doing something in the fridge, acting as if he was talking to someone.

"Mikey?"

He quickly shut the freezer door and blocked it, finally noticing that everyone was staring at him. "Uh, I didn't do it. I swear, I never touched it and—"

"What are you babbling about?" Eclipse questioned.

Splinter then walked into the room, groaning. "Need ice... for my head... and possible a cheesicle." He opened the freezer.

Michelangelo quickly grabbed it and shut it again. "You can't do that! No, sensei!"

"No?" Splinter's calm demeanor changed immediately. "You tell me no?" His eyes started glowing red, just like in the dojo. Next thing that they all knew was that he was knocking Michelangelo onto the counter.

Everyone let out startled gasps and due to his fear of rats, Casey even took a few steps back. Michelangelo sprang off the counter and jumped over the table as Splinter went down on all fours and pursed him, hissing.

Casey huddled beside the table as Splinter chased Michelangelo around the table. "This is not helping my whole rat thing." He said.

Michelangelo fell near the fridge and Splinter jumped up on the table, glaring down at him.

"Help him!" Leonardo shouted, as he, Henry, Raphael, Donatello, Eclipse, and Briana pinned Splinter down on the table.

Splinter threw them off, standing on the table. "I got what I came for. Soon, New York will be mine!" He blinked and his eyes returned to their normal warm brown as he collapsed on the table.

"Sensei, are you okay?" Leonardo asked.

"What happened?" Henry asked.

Splinter pushed himself up to sit, placing a hand against his head. "The Rat King has returned."

At the mention of that name, the five mutant turtles, Henry, and Briana exchanged uneasy looks with each other.

👑👑👑

"THIS IS JOAN Grody reporting live from Bleecker Street, where giant rats have emerged from the sewers. These revolting rodents are snatching people away on this edition of... Grody to the Max."

"Giant rats?" Casey questioned as he sat down on the couch, his skin had paled and his eyes were wide. "Giant... rats?"

"Maybe you should sit this one out, Casey." Kaz told him, patting his shoulder.

"We could really use your help, sensei," Leonardo stated. "Last time you took that creep down with one punch."

"Last time was different, Leonardo," Splinter responded. "The Rat King has grown powerful. I do not fear for myself, but for what he could... force me to do."

👑👑👑

IT WAS POURING rain on the topside while the chaos reigned throughout the streets of New York City. There were a ton of rats, both regular and giant, all over the place as they searched for people to bring to their master while screams were heard all throughout the city.

Boy Danger, Raphael, Donatello, Eclipse, Captain Violet, April, Kaz, Mara, Zane, and Calista were riding on the Patrol Buggy since Donatello and Captain Violet had adjusted the carts so they were able to pair up riders: Raphael and Eclipse, Donatello and Boy Danger, Captain Violet and Kaz, April and Mara, and lastly, Zane and Calista. Michelangelo was skateboarding behind them, holding a rope attached to the Buggy as they drove, and he even wore a large piece of cheese on his head while Leonardo was driving the ShellRaiser for backup.

"Why do I have to wear the cheese?" Michelangelo shouted as giant rats were chasing after him.

"We have to lead them away, and you're awesome at being bait." Eclipse replied.

"This is the worst thing ever!" Casey shouted, following on his own bike.

Michelangelo screamed behind them. "Faster, faster, faster!"

Up ahead of the Buggy was a blockage of cars and giant rats alike but, the ShellRaiser sped out of a nearby side street, pulling in front of the Buggy and ramming straight through the Blockage. "Sorry, I'm late!" Leonardo said.

Michelangelo screamed, jumping onto his free seat of the buggy. "They're gonna get me!"

Suddenly, a rat jumped onto the buggy, making everyone scream. The rat flew off as it was hit in the side by a large garbage wad from the ShellRaiser. Several more followed in quick succession before giant rats swarmed the vehicle.

"A little help here, guys?!" Leonardo said, as the ShellRaiser toppled over.

Raphael made the Buggy circled the block, trying to avoid the rats and ignore the explosions that were clearly Casey's doing. When he pulled around the corner, one of the rats was dragging Casey across the street.

"Casey!" Kaz shouted.

"Guys, turn the cart around!" April added.

Raphael quickly made a U-turn to go after Casey. As he sped up, there were several rats on the fire escape above.

"Oh, no." Donatello muttered.

"Let's split up!" Raphael said.

They all pulled their levers and the buggy split into their own carts. As everyone swerved in order to avoid the giant rats, Michelangelo even tossed his cheese hat at the rats, hoping to distract them. Zane gave a startled yell when one of the giant rats had leaped onto his buggy, dragging him along to the sewers—he struggled to get himself free when he noticed that Calista was also getting dragged by one of the giant rats as well.

"Zane!"

"Cali!"

The giant rats moved to the manhole cover, now entering the sewers with Casey, Zane, and Calista. April stopped her cart and jumped out, rushing over. "Guys!" April grabbed the rat's tail and pulled it. "No, you don't!"

Mara stopped her cart as well, jumping out of it as she rushed over and grabbed the tail to help April. But the rat threw them off easily as though they were flies, disappearing into the sewers.

"April! Mara!"

Both Donatello and Captain Violet pulled their carts up beside them and jumped out, running over.

"Are they...?"

Donatello never finished because April hugged him, and he was quick to return it. Captain Violet walked over to Mara and placed a hand on her shoulder.

👑👑👑

"HEY, ARE YOU guys okay? Mister?" A familiar voice reaches Casey's ears as he groans a little, slowly opening his eyes. "Zane? Calista?"

"What...?" Zane mumbled to himself as he started to wake up as well.

Casey's startled yell made Calista shot awoke, sitting up with her eyes wide open. She pushed herself onto her feet to find that Irma was in the same cage as well. Calista looked over at Casey to find his mask still on, realizing why the girl hadn't recognized him.

"Oh, great," Casey muttered to himself in annoyance, not too thrilled about being in the same cage as Irma. He cleared his throat and made his voice sound deeper. "Uh, I'm fine, miss. Where are we?"

Calista raised an eyebrow at the sudden deep voice he was going for while Zane bit the bottom half of his lip, trying not to smile at him.

"Here, let me help you up," a voice that Zane could've swore he knew said to him, holding out a hand to him.

"Thanks," Zane says as he takes the hand, now standing up to his feet. Once he was standing, he pulled his hand back but his eyes widened when he saw who it was. "Tyson?!" He questioned, recognizing his ex.

Tyson gave him a small, shy smile. "Uh, hey there," he said. "It's been a while, June-bug. So, uh, how you been?"

At the old, yet familiar nickname, Zane couldn't help but grow uncomfortable by it as old memories resurfaced in his head; some good, some bad. Casey, on the other hand, didn't know why but he suddenly felt a pit of jealousy growing in his stomach from how Tyson was looking at Zane or even how close he was to him, causing Casey to clench his fists in contempt.

Casey suddenly found himself wrapping an arm around Zane to pull him closer to him while glaring at Tyson from behind his mask. "He's fine." He said, there was a little bit of bitter directly at him.

Calista rolled her eyes at him before turning to Irma. "So, where are we?"

"The sewers," Irma said. "We're prisoners... of the Rat King."

"Welcome, esteemed guests," the Rat King said. "There's no need to fear. I will not hurt you—that I promise."

"Let us out of here, you freak!" Casey shouted at him, now focusing on the Rat King.

"All in good time. These were simple, ordinary rats until I transformed them with my special mutagenic growth serum. But these were not the soldiers I was looking for. I have just unlocked the secrets of the ultimate army— rat people! And you, my friends, will become that army!"

Casey, Zane, and Calista shared a glance while the rest of the hostages started panicking, letting out whimpers and cries. Irma even passed out, causing Casey to have to catch her.

👑👑👑

AFTER THE OTHERS had returned back to the lair, they gathered at the main room around Splinter.

"The Rat King peered into my mind to see what makes me unique," Splinter explained. "With that knowledge, he will create an army of rat people."

"We gotta stop him, sensei." Raphael said.

"I told you, he is too powerful... even for me." Splinter responded.

"But, Master Splinter, if there's one time we could use your help, it's now." Leonardo added.

"Enough!" Splinter said, slamming his cane against the floor. "I will not put you in danger again."

"We believe in you, sensei," April said. "We need your help and so does Casey, Zane, and Calista."

Splinter, however, only shook his head and walked away, heading straight for the dojo while the others only watched him go. But despite the fact that Splinter wouldn't go with them, they all stood got ready to go rescue Casey, Zane, Calista, and the other hostages.

👑👑👑

IT DIDN'T TAKE them long to find the Rat King's lair, and it was also pretty easy to sneak into. The cages were hanging in the air by a piece of rope holding onto it, and inside one of the cages, all of them could easily make out Casey's, Zane's, and Calista's figures.

April gasped. "There they are!" She whispered in relief. "And... Irma?"

"We can't let the humans see us, April," Donatello said. "You guys are gonna have to free them."

Boy Danger looked around the area when a hand settled on his shoulder. "Sensei?" He turned to see Splinter standing behind him.

"It is time the Rat King is dethroned." Splinter stated.

"I knew you wouldn't let us down." Leonardo said.

"If I should lose control," Splinter told Leonardo and Boy Danger. "You do what you have to do."

Both Leonardo and Boy Danger nodded grimly. "Let's go!" Leonardo said, as they leapt into the lair.

While the five mutant turtles and Splinter stuck to the shadows to handle the Rat King since they couldn't get seen by the humans, Boy Danger, Captain Violet, April, Kaz, and Mara stealthy snuck their way over by a nearby wall, spotting the lever to drop the cages just a few feet away. The only problem was that it was being guarded by a giant mutant rat, that was currently sleeping.

Leonardo settled on a high vantage point, spotting the Rat King approach the cages with a syringe in his hand. He readied a knife, taking careful aim, when suddenly, Splinter grabbed his wrist and stared down with red eyes.

The Rat King laughed, and Splinter blinked. "No! Get out!"

The Rat King continued to laugh. "You're mine now, Splinter! Destroy your children... one by one."

Splinter turned the blade on Leonardo, pushing him to the floor. He struggled against the blade inching closer, locked in the iron grip of his father.

"Forget that, Rat King!" Michelangelo shouted. "Oh, yeah!" He fling the cooler he insisted on bringing. "Ice Cream Kitty, AWAY!"

And just like that, a cat made out of Neapolitan ice cream landed on the Rat King and attacked him with a yowl. Due to the attack on the Rat King, Splinter snapped back to normal and released his grip on Leonardo's hand. He rolled away, springing back to his feet.

"Is that April's cat?" Donatello questioned.

"Absolutely not," Michelangelo answered way too quickly.

"Yeah, right," Eclipse said with a scoff, clearly unamused by him. "You clearly got the cat mutated."

Splinter, however, was gone in an instant, chasing the Rat King, who'd broken free of the cat and gave orders for them to be destroyed.

As the giant rats went to attack, so did the five mutant turtles. Running to the lever, Boy Danger pulled it and the cage that held their friends dropped and opened once it hit the ground.

"Oh, thank shell." Zane said, relieved.

"Yes! Finally free!" Casey shouted.

Calista, however, remained silent and did the very best she could to keep her mouth shut from saying something. 'Great... saved by those freaks.' She thought secretly to herself.

"April!" Irma shouted, pushing past Casey and Calista as she ran towards the orange-haired girl. "How did you find us? Did you follow the trail of rat droppings? It has a unique aroma of—"

"Not now, Irma!" The eight teenagers shouted at her in unison.

"Let's free the others and get out of here." Casey said.

As they all rushed off to free the other hostages, Mara turned towards her girlfriend. "You okay?" She asked.

No! I'm not okay! First, I was kidnapped by a giant rat to some Rat King and now, I just got saved by those turtle freaks!... at least that's what Calista wanted to said, but instead of saying it, she just gave the girl a small smile and nodded. "Yeah, I'm fine." She responded, yet her tone held a tiny bit of contempt.

Although Mara had brought it, looking relieved before she went off to help her friends free the other hostages with Calista following. What Calista didn't realize was that thanks to Boy Danger's heightened senses, his ears had caught on to Calista's respond and he didn't look too convinced that it was the truth.

As the hostages were getting free, every men and women didn't hesitate to run out while screaming at the top of their lungs, wanting to get away from the giant rats.

"Hurry! Everyone, run! We'll lock the doors!" April told the running hostages.

Suddenly, a giant rat fell down behind her and April whirled around as the giant rat growled at her. The giant rat didn't get to attack her because before it could, Donatello and Boy Danger leapt down and with their respective weapons, they each smacked the giant rat.

"You guys get everyone to safety, we'll handle the rest here!" Boy Danger told her.

Donatello nodded in agreement. "We got this covered."

"You always do." April said, causing Donatello to smile. Then, April left while Boy Danger and Donatello turned back to join the fight.

Running through the sewers to reach the topside was Irma with Casey, Mara, Zane, Kaz, and April. By the time that they reached the ladder to the manhole cover, they stopped for a second.

"I'll be fine if I live the rest of my life without seeing another..." a giant rat suddenly appeared in front of them and growled. "Rat." Casey finished.

The giant rat growled at them. "I've had about enough of you." Casey told the rat.

As the rat charged at them, Casey had suddenly punched the giant rat across the face, knocking the rat down onto the ground. Kaz, April, Mara, Zane, and Calista only blinked in surprise before glancing at each other.

👑👑👑

"I THINK THAT'S all the rats," Raphael said as he met up with Eclipse, Donatello, Boy Danger, Captain Violet, and Michelangelo on an upper platform of the lair. Michelangelo was on his knees, hugging the now mutant Ice Cream Kitty for saving his life.

"But what about sensei?" Leonardo asked, pulling himself up onto the platform as he stood up.

"It's sensei," Eclipse said, full faith in their father. "He'll be alright."

Boy Danger nodded in agreement. "Besides, he beat the Rat King once. If anyone can do it again, it's sensei."

"And, it was indeed Master Splinter that won the fight. As for the Rat King? Yeah, we never dealt with him again after this."