Ever since the return to New York the guys had been searching for the newly transformed snake mutant Karai. Donny had tried to create a mutant tracker to help but after the Kraang invasion the amount of mutants had skyrocketed and so finding one in particular was tough. When they'd tried searching for her above ground they'd only gotten close before losing her into one of the many underground entrances. Then they'd tried looking as a team but they'd covered little ground. So after a long debate they'd decided to split up and look for her. Leo and Donny had taken the east tunnels while Raph and Mickey had taken the west. Which left Casey and April to take the south. As they walked along the dark winding tunnels April kept feeling that something was off. She'd gotten better at using her powers and had taken every chance to train herself.

"I'm telling you Casey I keep feeling like something is watching us."

"Red we're deep in an underground sewer tunnel in a city that has mutant animals running around it. I'd be surprised if you weren't feeling watched. But don't worry Casey Jones will protect you from whatever's out there." He said trying to strike a manly pose. But she only sighed in annoyance and walked past him. Ever since Donny had given up his romantic stalking for actual friendship Casey had tried more and more to impress her.

If he were only more mature and less arrogant then maybe I'd consider it. But then again probably not, he's a good guy but I just don't see him like that. Maybe It's becasue I've spent most of my time around the guys or maybe I'm just not interest in that sort of thing. In fact I haven't felt anything since...

Her mind drifted to a few months back when Karai had posed as Harmony to decieve her. When she found out who she really was she'd tried to run but Karai had easily caught her and pinned her against a wall. She could still reacall how Karai had todayed with her.

"Well Red I'm a little disapointed. I thought you'd at least last ten minutes." She said her one arm pinning her by her throat.

"Shut up!" April tried to struggle free but Karai was to strong to escape from. Then after a moment Karai smiled and then moved her arm and grabbed her head before kissing making April go stiff with shock before all but melting into her arms before she pulled back. "It's a shame some one as cute as you is my target but hopefully when your friends are dead I'll get to have more fun with you."

She'd managed to escape soon after but to this day she couldn't forget how good that had felt. For days after that her mind had been plagued by all kinds of thoughts.

It was just soooo good. No April you can't think about that right now. Just focus your powers on finding her!

As they went deeper down the tunnel the sound of rushing water got louder and louder. But that wasn't all, as they got closer they found bits and pices of Kraang robots and white scales littering the place.

"I think we might be on the right track."

"You think we should call the guys?" she asked trying to get a read off the scales.

"Nah for all we know this could just be where she passed through a week ago."

But then the familiar sound of the blaster fire filled the tunnels and they rushed toward it. As they entered the opening they saw a massive swirling vortex of water with a few walkways connecting to other tunnels. On one level was a semi torn apart Kraang droid and just apart from him wrapping around another was the snake mutant Karai.

"Kraang demands that the mutant known as mutant stop what is known as crushing of Kraang." it said raising it's blaster at Karai who hissed and bit the head of the robot she was crushing before throwing it's body into the water.

"Casey call the guys I'll see if I can reach her with my powers."

"Right." as he pulled out his t-phone April started along the walkway to get closer.

The damaged Kraang shot at her as she tried to get closer but the blaster kept her at bay.

April through no small amount of skill managed to get just behind the Kraang and tried to use her powers. Karai stopped in her tracks as April managed to touch her mind, unfortunately the Kraang took notice and fired hitting her in the shoulder. She hissed in agony and slumped to the ground.

"No!"

The kraang hearing another person turned around. "The human known as April O'Neil is to surrender to Kraang." Instead April used her powers to throw the Kraang into the water before rushing over to Karai.

"Karai don't try to move you're hurt pretty bad." If she expected a Karai to understand she was wrong and she hissed before biting her on her arm. The pain exploded as her venom spread through her arm. It was the single most painful thing she'd ever experienced and with every moment she felt as though her arm was about to fall off.

Casey seeing this shot a couple of explosive pucks at Karai but they fell short. "Don't worry red the guys are on their way."

April could just barely hear him as the venom began effecting her vision and hearing. But through the haze and pain she reached down to her shirt tearing off a portion and slowly moving toward Karai.

"It's okay I just want to help."

Her arm shaking from pain she extended her hand, when Karai didn't bite she took it as a good sign and slowly wrapped her shoulder as best as her rapidly numbing arms could before slumping down her arms and legs immobile and her body on fire.

Karai sniffed at her bandaged arm and then down to April who was lying next to her.

"Get away from her you monster!" Casey said climbing onto the edge and breaking out his hockey stick. Karai was acting more and more like a cornered animal and having just used the last of her venom knew she had to flee. But something in her animalistic mind focused on April. So using her long arms she wrapped up April and dove over the edge just as the turtles came out of the tunnel.

The moment her body hit the water's depths she focused her tail as a rudder and sped underwater through one of lower tunnels. She took many turns through the various passages before she finally came up in the small enclosed area she taken as her home. Various objects adorned her home, she couldn't remember why she took or even what they were but something inside her volatile mind knew the answer. She dropped April on a dirty mat and curled up beside her for warmth.

Meanwhile back in the tunnel the guys were going crazy. "Leo we have to go after her!" Casey screamed being held back my Raph.

"Casey believe me I want nothing more then to rescue April but we have no idea where that tunnel leads. For all we know it could spit us out in Jersey or just be a dead end. For know we need to know were it leads. Donny please tell me you have something."

"Well Leo this is an old waterworks tunnel. Most of it should lead to the ocean but there are a few tunnels that haven't been maintained in decades and as such have been left out of the maps. I hate to say it but for now we'll have to got to the lair and get some diving gear so we can properly map this place out."

"But what about April?"

"For know all we can do is hope that April can find some way to surrive untill we reach her.