Disclaimer: I do not own Harry Potter or Teenage Mutant Ninja Turtles.


It's been a month since the brothers defeated The Kraang, and they were still riding the high. Laughing and cheering as they leapt across the city rooftops, well skated in Mikey's case.

"Then I took my sai and shorted out the Kraang droid's skull" Raph reminisced. "So cool."

"Sure Raph" Donnie agreed. "But I used my scientific genius to take out an alien interdimensional portal. Equally as awesome!"

"Let's not forget when I shorted out the entire Technodrome" Harry laughed.

"What about Master Splinter?" Leo applauded. "Wish I could've seen him take down The Shredder."

"And let's not forget cottage cheese demon" Mikey added, much to his brothers confusion. "If we didn't stuff in that microwave, the world would be drowning in living cheese!"

"For the 22nd time Mikey, there was no cottage cheese demon!" Raph yelled in frustration. "Ever!"

"Did you see him?"

"No!"

"Then how do you know?" Raph could only sputter in frustration as he tried and failed to make sense of Michelangelo's words before finally giving up and simply letting him have this one. As the boys resume their month long party, Donnie notes that they were near April's apartment. Since they hadn't seen her since their victory over the aliens they decide to swing by her place for a visit.

"Um hey guys" April greets them nervously outside her window. "Do you guys mind staying on the fire escape?"

"Seems like you've been avoiding us lately, April" Leo notes.

"Yeah I'm sorry guys. Dad's abduction nightmares have been getting worse" she explained.

"Is there anything we can do?" Harry asks.

"Thanks guys but I don't think so. Dad's still so freaked out he won't let me out at night." Hearing his daughter's complaints Kirby approaches the group.

"I'm sorry April. It's just, what if The Kraang are still out there? Waiting. Lurking. I'll do anything to protect you."

"But Dad, I can take care of myself now" April argued. "And I'll be with the guys I couldn't be safer." Kirby couldn't deny that the five ninjas were indeed a powerful force and wouldn't let anything happen to his daughter but he was still hesitant.

"Trust us Mr. O'Neil, Shredder and those squishy brain freaks are long gone." Mikey assured him. Convinced Kirby decides to let April out for the night, provided she stay with one of the brothers at all times. With April in tow, the turtles decide to head back to the lair to party as Harry and the redhead make a stop to pick up the pizza order.

"So Harry, got any news from England?" asked April, as the pair carried the pies to the lair.

"Well Prof. McGonagall finally figured out how to use the T-phone we gave her, since I can't have Hedwig picking up my mail anymore and post owls have trouble finding me." Harry reported. "Ron called and told me his dad almost broke his and he's invited me to meet him Diagon Alley for back to school shopping."

"And Hermione and Neville?"

"Well Hermione's taking classes to keep up with her non-magical subjects. She's even started corresponding with Donnie for homework." The pair shared a laugh over the news, April had gotten to like the Hogwarts kids during their brief visit to NY and hoped they'd visit again soon, so she could show them the sights. "As for Neville, he told me his gran wasn't only proud he's a Gryffindor but impressed that he was part of the team to go after the stone."

The stone was a sore subject between Harry and his wizard friend. While they were glad they were able to stop Voldemort from getting it, they didn't appreciate the fact that the defenses around the stone were designed to challenge them specifically so Harry would be forced to fight the dark wizard. Dumbledore had not only played them and black mailed Harry to return to Hogwarts, lest his friends' lives be at risk. The old man went so far as to award them house points and gave Gryffindor the house cup as if that somehow made up for it all.

One thing was for certain, the four Gryffindors were going to have to be on their guard around the headmaster from now on. At least we have Prof. McGonagall on our side. Harry and April entered the lair just in time to see Mikey, Leo, and Raph locked in a game of ninja dodgeball.

"Is that the Kraang communication orb?" Harry asks rhetorically. "Guys Donnie's gonna go ballistic once he sees this!" the boys warning goes unheeded as the orb goes flying into said turtle's lab. Not long afterwards Donatello comes marching out, clearly irritated by his brothers antics.

"What're you guys doing?" Donnie questions, frustration leaking into his voice.

"Playing dodgeball fool" Mikey answers, as if it should be obvious.

"With the Kraang communication orb! This is a rare and fragile piece of alien tech." the purple turtle lectures. "You guys can't just…"

"Eh don't get your shell-undies in a tangle Donnie" Raph dismisses. "The Kraang are toast."

"Yeah, lighten up dude" Mikey agrees. "Relax bro, this is a party. Woo!" At that moment Splinter and Hedwig enter from the dojo, both growing tired of the boys' current attitude.

"My sons I know you are still joyously reveling in the defeat of our enemies" said Splinter. "But a great question remains…"

"What if cupcakes could talk?" Mikey suggests. Wisely choosing not to even acknowledge that Splinter carried on his point.

"Are we certain our enemies are defeated? The Shredder is a crafty and patient foe that bides his time."

"But Sensei, you said that Shredder lost whatever sense of honor he had left." Leo points out, dismissing any possible danger. "We'd never see him again."

"This is the same man that spent a year hunting us down" Hedwig reminds them. "Do you really believe he'll just back down. Not to mention Dumbledore is still blackmailing Harry."

"Relax" said Raph cockily. "If he shows up again we've got him." Completely dismissing any possible threat the boys walk past them, finally causing their father to lose the last of his patience.

"Enough!" he bellows, snapping the boys to attention. "You five have become lazy, overconfident, you shirk your training. This party ends. Now!" With the brothers egos hopefully back in check, Splinter and Hedwig leave them to their own devices.

"Man that was harsh" Mikey complains.

"I don't know maybe they're right" Leo suggests. "Maybe we are getting too cocky."

"Ha, it's not cockiness when you have the skills to kick massive bu.…" Raph's words fall short as the Kraang communication orb suddenly begins to go off.

"Is that thing working again?" April questions in disbelief.

"But it's been quiet for weeks" said Donnie.

"Yeah well its real chatty now" Harry comments.

"This could only mean one thing."

"That cupcakes can talk" Mikey suggests, prompting Raph to smack him upside the head.

"The Kraang are back" Leo concludes, throwing the room on high alert.

"Guess the party really is over" said the orange turtle dejectedly. Rushing to Donnie's lab April and the boys gather round as the turtle tries to decode the message.

"Can you get anything Donnie?" Harry asks.

"Yeah, it's tough to crack but it seems The Kraang, are transporting some kind of shipment." A few quick keystrokes and Donnie was able to pull up the image of a UFO. "They're using a stealth ship."

"Great how're we supposed to track a ship that can turn completely invisible?" Raph points out.

"We'll track it with this" said Donnie, pulling out a remote with eggbeaters sticking out on top of it. "It's aligned to the radar dishes we placed throughout the city."

"So what's it do?" Harry asks.

"It'll create a triangulating pulse that will…"

"English, Donnie" Raph interrupts, not in the mood to deal with a complicated explanation.

"It. Will. Detect. The Kraang. Spaceship" the purple turtle clarifies, speaking slowly as a means to mock his dumber brother and vent his frustration. "April, can you stakeout a rooftop and feed us the ship's coordinates?"

"Me?!" She questions incredulously. "I don't know anything about radar."

"What about your dad" Leo suggests.

"My dad? He barely lets me out of the house anymore. He's never going to go for this."

"Please April" Donnie pleads. "Your dad's a scientist, we really need his help." April's torn between wanting to help her friends and wanting to help her dad heal from his nightmares. With a reluctant sigh, she agrees to convince her father to help scan for the Kraang ship.

"We'll need something fast if we're going to catch that ship" Raph points out.

"Raph's right" Harry agrees. "My broom isn't going to cut it." Donatello was one step ahead of them, having each of them grab a helmet and a turtle glider, or broom in Harry's case, he leads them into the abandon subway tunnel, where he shows them his latest creation.

"I call it the T-rocket!" The T-rocket, a heavily modified roller-coaster car designed to hit speeds of at least 300mph. As the boys loud up into the rocket, April and Kirby are on the roof of their building. Unable to tell her father the truth April has decided to come up with the brilliant plan of lying and told him, it was an extra credit assignment of tracking pigeon migration.

"In the summer?" Kirby questions, not seeing the logic in the timing.

"I guess they mean, their migration around the city" she lies nervously. Suddenly the Kraang stealth ship passes overhead, its cloaking device shorts out for a second exposing it and throwing Kirby into a panic.

"Guys, we've got the coordinates" Leo announces, signaling for Donnie to launch the rocket. The rocket tears through the subway at insane speeds, for a moment Harry can't help but wonder if the goblin Griphook would let Donnie upgrade their mine carts. Blasting out of the subway into the open air the brothers quickly launch themselves out of the rocket, using their means of flight to search for the Kraang ship. A search that doesn't last long as they soon crash directly into the invisible UFO.

"I think we found it" Harry groans, as they cut an opening in the ship's hull. Once inside the brothers aren't impressed as the ship is only being piloted by three Kraang.

Kraang1: "It is the ones that call themselves the turtles."

Kraang2: "Kraang, we must alert Kraang!"

"Ha! Three little floating blobs of brains" Raph laughs. "That's it?"

"Too easy" Harry smirks.

"We could take these guys in our sleep" Leo boasts.

"We could take these guys in our sleep, with our eyes closed" Mikey adds. As the brothers dismiss the three aliens as any kind of threat, a compartment opens up behind them. A strange groaning sound draws their attention, weapons at the ready the ninjas find themselves facing a strange headless cybernetic gorilla body.

"Awe sewer apples" Harry groans, as the headless body towers over them.

"Where's its head?" Raph questions. The ape body steps into the open, knocking the brothers aside effortlessly as it approaches the Kraang.

Kraang3: "Biotroid, engaged" the alien connects it's saucer to the ape body acting as its head. Activating the Biotroid, the ape body flexed its arms while exposing its chainsaw nipples.

"Chainsaw nipples?" Harry questions. "Who comes up with chainsaw nipples?!"

"Ok maybe we were a little cocky" Donnie admits. The brothers quickly scatter as the Biotroid slams its fists into the ground. Harry and Leo find themselves clashing blades with the alien robot's chainsaws, the deadly blades swinging from cables connecting to the Biotroid's chest.

As they clash with the chainsaws the cables wined themselves around the brothers' arms and forcefully toss them to the side. Coming to their brothers' aid Raph and Mikey move in to attack. The red clade turtle charges from the front and soon finds himself clashing with the chainsaw. Raph fairs no better than his brothers and the blades soon have him pinned against the wall; Mikey then makes his move slamming his nunchucks into the back of the Biotroid, but his attack has no effect and the Kraang retaliates with a brutal punch sending flying across the room. Mikey's impact with the wall knocks open a hidden compartment revealing the ship's cargo to be none other than mutagen ooze.

"Mutagen! This ship's hauling muta…..Ugh!" Leo groans as the Biotroid sends him crashing into the stealth ship's control panel, destroying the ships steering. Getting frustrated Harry decides to go for a flame fist attack, only for the fire to be extinguished as the Biotroid catches the boy's fist.

"Oh come on!" Harry groans, changing tactics he goes for his big guns and charges up his Raikiri attack. Unfortunately that too fails as The Kraang had learned from the Technodrome incident and insulated the Biotroid against such an attack. "Oh sewer bunnies."

The boy is sent flying into the approaching Donatello, resulting in them landing in a painful heap against the wall of the ship.

"This guy's too tough" says Donnie, moving Harry of him.

"I've got this!" Mikey declares, figuring if they can't stop the Biotroid he can at least stop the ship. The orange turtle rushes past the cyborg ape and goes straight for the Kraang trying to fix the ship's steering. Kicking one of the piolets Mikey sends the alien bouncing around the ship knocking lose the mutagen shipment before finally crashing into the controls, opening up the bottom of the ship. As the craft continued to spiral out of the control the mutagen containers soon fell out of the ship much to the brothers' horror.

Watching from the rooftop April watches in terror as the mutagen falls spreads across the city. She's mesmerized as the falling ooze twinkles like falling stars, April doesn't notice as one of the containers falls toward her.

"April!" Kirby cries, pushing his daughter to safety the mutagen bursts open covering him in ooze as he falls off the rooftop.

"Dad!" April screams in horror, as her father flies up to the rooftop in his new mutant form, a hybrid human/bat creature with wings, over-sized head, fangs, deformed mutagen filled veins, retaining his red hair and beard.

Back on the ship the brothers are panicking over what they've done.

"You two are the biggest screw ups ever!" Raph yells in frustration.

"Hey I was busy getting tossed around like a rag doll!" Harry defends. "Mikey's the one who opened the ship!"

"You could've caught one!" Mikey argues.

"Um guys!" Leo calls, his swords clashing with the Biotroid's chainsaws. "Wanna focus!" Harry, Raph, and Mikey drop their argument and rush to aid Leonardo, but the four are no match for the ape body's strength and are easily batted aside. Donnie then tries his hand at attack the Kraang controlled primate body, feinting a frontal attack the turtle flips over the Biotroid and lands a savage strike at its back. Unfortunately this had no effect other than knocking off its butt plat, revealing…

"Butt cannons?" Donnie questions incredulously. "It has butt cannons!"

Kraang3: "Biotroid, engage!" the Biotroid's backside begins firing laser blasts at the ninjas, forcing them to scatter in order to avoid the deadly flatulence.

"Chainsaw nipples and butt cannons" Harry complains, flipping over a laser blast. "I'm seriously wondering what's wrong with The Kraang!" The laser blasts only add to the chaos on board the ship, as it wildly flies through the city skyline crashing into random billboards.

"Mikey drop those Kraang!" Donnie orders, an idea coming to mind.

"Done and done!" Mikey happily agrees, drawing a pair of shuriken. "Throwing star time!" the shuriken short out the Kraangs' saucers, causing them to spin uncontrollably leaving them vulnerable for Donatello's follow up attack, his staff knocking the aliens out of commission. Reaching the control consul Donnie inserts his naginata blade, using his weapon as a joystick to control the ship.

Donnie's rough steering sends the Biotroid and his brothers sliding back and forth around the ship, disorienting them. Flying the ship through a tightly packed group of apartments the purple turtle decides to send the alien ship on a one way trip to the moon.

As Donnie directs the ship high into the air, the now completely nauseous Biotroid has lost track of the other ninjas. Raph reveals himself, stabbing his sais into the base of the Biotroid's neck severing the controls. Mikey then moves in stunning the Kraang piolet with a few quick blows from his nunchucks. With the alien now stunned Leo moves in his katana slicing through the brain squid's tentacles, leaving the control port of the Biotroid exposed to Harry's Raikiri attack, the resulting energy surge causes the cyber ape to explode.

"Time to go!" Leo orders. The brothers dive from the ship, using their grappling hooks to swing to April's rooftop where the see the girl being cornered by the mutated Mr. O'Neil. Thinking she was in danger the ninjas move in to attack only to be stopped by April's desperate cry.

"No don't hurt him!" stunned by her words Harry and the turtles are knocked aside as Kirby swoops past them grabbing his daughter as he flies away.

"Can this night get any worse?!" Raph complains sarcastically.

"Guys" Leo calls, showing them the broken remains of a mutagen canister. "I think that was Mr. O'Neil."

"How can you be sure?" Mikey asks.

"You see many giant, red-bearded, middle-aged bats lately?"

"We got to go after her" Donnie panics, worried about April.

"But what about all that mutagen?" Raph reminds them. "We've got canisters all over the city."

"It'll have to wait Raph" said Leo, leading them back to the lair. "April's dad comes first." Returning to the lair the boys sit around the living room trying to think of a way to find April and her father, unfortunately their resident genius was having a breakdown.

"I can't think… I can't think… I'm seriously stressing here!" Donnie panicked, pacing around the room. "Ok… Think calm thoughts… Think calm thoughts…"

"You think he's a vampire?" Mikey asks.

"You think he'll drink her blood and turn her into the undead?" Harry adds, further stressing Donnie out.

"Are you trying to freak me out?!"

"Yes" the human smirks. "Seriously Donnie calm down, you're no good to her if you lose your cool." At that moment Splinter passes by prompting Leo to seek his counsel.

"Sensei… say we're, um… trying to catch a stray pet… like a cat."

"A Cat?!" Splinter panics humorously.

"Or a parrot." Leo suggests in a hurry. "What's the best strategy?"

"Ah, food of course. Any animal can be lured by food. What is this about?" Splinter asks, shooting the boys a suspicious look.

"Nothing" Harry answers quickly, not wanting to risk Leo spilling the beans. "We're just discussing the possibility of a new pet." Shooting the boys another questioning look, the ninja master walks away. With Donnie remembering that bats love eating bugs, the brothers dress Mikey up in a fly costume (Turflytle) and set out to hunt for the bat.

"Turflytle is on the patrol, buzz buzz." Mikey says playfully, as he hangs from Raph's glider. "His bug eyes spy every crime, buzz buzz."

"Ugh! Will you stop saying 'buzz buzz' after every sentence?" Raph snaps.

"I could do that, buzz buzz. But I probably won't, buzz buzz."

"Any sign of Kirby Donnie?" Harry asks, as his brother scans the sky with his telescope.

"Nothing yet. Raph try shacking Mikey some more he needs to mimic a fly's flight patterns." Raph was happy to oblige as he performs a few aerial stunts. Their efforts soon bear fruit as Kirby comes flying in, rushing towards Mikey. They soon find themselves locked in an aerial battle with the bat mutant as the boys try to lead him towards the warehouse district. Kirby doesn't make it easy though using his wings he knocks Donnie out of the sky, incidentally the turtle lands on a rooftop where April was being kept.

"Time for Turflytle to take out his archenemy, Wingnut!" said Mikey, naming Mr. O'Neil and nailing him in the head with his nunchuck.

"We're getting close to the warehouse!" Harry reports, he and Raph quickly wrap their grappling hooks around Wingnut's wings while Leo freefalls on top of him. As the boys struggle against Mr. O'Neil, Harry uses the rope as a physical connection and forcibly teleports them into the warehouse, trapping the bat mutant inside the waiting cage.

"Nice work, Harry" Leo compliments, as Donnie and April join them.

"So what're going to do with him?" April asks, placing her hand gently against her father's head.

"At least he seems to remember you" Harry says gently, hoping to comfort his friend.

"But what're supposed to do? Keep him locked up here?" she said in distress. "This is all my fault, if I'd never gotten him on that rooftop."

"Listen, don't blame yourself April" says Mikey in an attempt to comfort her. "This was our fault. We spilled the mutagen. We'll fix it."

"W-What you spilled the mutagen?" April asks in confusion, behind her Harry, Raph, Leo, and Donnie signal for Mikey to shut up about their mistake but he doesn't get the message.

"Yeah we accidentally released all that mutagen all over the city" the orange turtle explains nonchalantly. "But don't worry we'll get it all back."

"You….you…."April begins to hyperventilate, Wingnut in response to her turmoil begins to act up slamming at the bars of his cage.

"April" Donnie says slowly, but the redhead wouldn't hear it.

"You mutated my father!" His daughter's rage throws Kirby into a frenzy, breaking free of his cage. Before the boys can do anything to stop him Kirby flies out of the warehouse escaping into the night. Consumed by rage and pain April sends the boys the most hateful glare she can manage.

"April I swear on Darwin's beard I will cure him" Donnie vows, taking a step toward the distraught girl but April pulls away in anger.

"Stay away from me! I never want to see your faces again!" hurt by her words the brothers watch as April runs out of the warehouse with tears in her eyes. Returning to the lair the boys explain the situation, their voices heavy with guilt over the pain they caused April.

"Give April time boys" Hedwig advices gently. "She'll see you wouldn't ever do something to purposely hurt her."

"I don't know Hedwig" Harry sighs. "She really looked like she's hates us."

"And she was in so much pain" Donnie adds. "Poor April."

"Do not dwell on the past" says Splinter, while he too understands how much the loss of their friendship with April hurts his sons. He understands they have more pressing matters to attend to. "You must find every last canister of mutagen. You must search every street, every park and playground. Every building and rooftop, before we have even more mutants on our hands."


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