(Remember, I don't own Grossology or any of its characters) Enjoy!

Previously, on Grossology:

- Lance Boil hovers in his submarine inside Roger's brain "Let's piece the puzzle shall we?"

- Abby yells "GET A LIFE!" and Roger flinches in pain

- Roger crunches a photograph of Abby and Ty and says "It's payback time"

- Ty and Abby fight two masked men who push a tanker truck and leap great distances, Ty asks "What kind of guy can do that?"

- Lab Rat speaks at the Gag Lab, staring at a computer scream "I'm picking up Ant DNA, Grasshopper DNA..."

- Insectiva is seen in a greenhouse as the Director yells "Insectiva is invading a greenhouse! Stop her!"

- Insectiva and her two masked men are cpatured by Abby and Ty. "Even your mutated drones can't get you out of this" Abby boasts

- Insectiva shrieks "I DID NOT CREATE THIS MONSTROSITY!"

-Lance's face appears on Abby's communicator. "This is your final test, grossologists! Failure costs you your lives"

- Ty and Abby are surrounded by mutated students, glancing around for a way out while Lance's evil laugh is heard

And now:

Tri-Genetics part 2

CH 1

Ty and Abby glanced around fearfully as the army of mutants surrounded them. Everywhere they looked, they saw glowing eyes of different colors, hissing mouths full of sharp teeth, and clawed fingers clenching and unclenching.

"Let's see you get out of this, Grossologists!" Lance's voice boomed over the loudspeaker.

"Ty, any ideas?" Abby muttered, trying to keep her eyes on all of them at once.

"Um, ask them nicely?" Ty smiled, but Abby couldn't tell if he was joking or not.

"Seriously?" Abby's voice shot up along with her eyebrows. "You want to talk to them?"

"Save your breath Ty" Both siblings looked up as a sneering voice echoed down the hall, but it wasn't Boil's. As they watched, the crowd of mutants began to part. Roger Pinkeye stepped inside the circle, a smug look on his face. An acid-shooter in his hands.

"Pinkeye?" Ty couldn't believe what he was seeing. "You're behind this?"

"Of course" Roger scoffed. "If Lance and I could create a rat-Abby to replace the real one, creating a mutagenic formula to mutate all the students at school was child's play"

Abby's eyes narrowed but Ty gasped in surprise. "Abby, he remembers"

"Of course I remember, you dolts!" Roger was glaring at them now. "I remember everything! I remember how I tried to find out your secret, and how you humiliated me every time I got close. Then, when I finally found out, and was brought into the fold, I remember how you betrayed me!"

Now Abby gasped in surprise. "Roger, Lance was the one who betrayed you! Don't you remember that?"

"Don;t listen to them, Roger!" Lance's voice crackled over the speaker system. At the same time, Roger's eyes squinted shut and he held his head, like he had a headache. "Remember how Abby attacked you, and how Ty insulted you! He called you a nerdling!"

"I did not!" Ty objected aloud. "You did, Lance!"

"Quiet!" Roger yelled. "You can't trick me again!"

"Again?" Abby cocked her head, glancing at Ty, who stared back at her, but his eyes darted downwards. Abby followed his gaze and smiled.

"Yes, again!" Roger continued "You thought you were so clever, attacking me, insulting me, getting me fired, then making me forget everything about being a grossologist! Well, who has the last laugh now?" Roger laughed, unaware that Ty and Abby were formatting an escape plan.

"Ha! Yeah right!" Abby laughed. "Like you're ever going to be a real grossologist after what you just did. Wow Roger, you really need to get a life!"

Roger's eyes narrowed and he growled in anger. His face turned red and his body began to shake. Ty was surprised that steam wasn't coming out of Roger's ears.

"You're gonna regret saying that" He said, his voice tight yet surprisingly calm.

"Make me" Abby taunted, smiling triumphantly.

Still literally shaking with anger, Roger held up a small device and pressed a button. "ATTACK!" He screamed and all the mutated students leapt into action.

As soon as the mutants leapt up, Ty and Abby leapt also, leapt down. By the time anyone had realized what had happened, Ty and Abby had hit the ground, rolled under the rising wave of mutant teens and were dashing down the hallway.

"AFTER THEM!" They heard Roger scream as they ran, followed by Lance over the school communication system.

"Nice try, but there's no way out. Thanks to Roger, every door in the school is padlocked shut, and every window is bolted. You'll never get out! It's only a matter of time before I exterminate you like the vermin you are!"

Lance laughed again, his insane cackling echoed down the halls and ground into Ty's brain, making his head hurt so much he ground his teeth in an effort to try to shun out the noise.

"Seriously, he's completely lost it this time!" Ty exclaimed as they rounded the corner.

"I know, Roger's completely out of his mind!" Abby yelled back.

"I was talking about Lance, but yeah, what's up with Roger?" Ty asked as they rounded another corner and skidded to a halt. At the end of the hallway were ten mutant students glancing in their direction.

"Split up, meet at the Gag lab!" Abby yelled as she darted in one direction.

"Right!" Ty called as he darted in the other direction. As both siblings ran, they could hear shrieks of rage from the mutated students.

A few minutes later;

In the Gag Lab, Ty and Abby leaned against the walls, catching their breath while Lab Rat activated emergency lock-down procedures. They watched as metal plates slammed down over the doors and thick grills covered the plates.

"Well, that does it." Lab Rat announced, stepping back from a computer console. "Lock-down procedure complete, none of those mutants are getting in here."

"Thanks Lab Rat" Abby panted, as she adjusted her ponytail. "Now we just have to figure out how Pinkeye did this. You okay Ty?" She glanced over to see her brother staring at the wall, a sad look on his face. "Ty?" Abby felt worried. Ty hadn't said anything for at least half an hour.

"I'm okay" Ty replied, sounding sullen. "Hey Abby, you didn't by any chance, see Naomi when you were running did you?" He glance at his sister, his eyes bright with worry.

Abby didn't know whether to be happy that Ty hadn't lost it, or angry that he was thinking of Naomi instead of their current situation. She decided to try to be understanding. "No, I didn't see her" She said, walking over.

"Me neither, but she may have been mutated along with the rest" He replied, sighing. "So much for our date plans"

"I know" Abby felt her heart sink at how deflated her brother looked. He had seemed so eager. "You were looking froward to giving Naomi that large cookie that you bought" Her eyes suddenly lit up. "The cookie! That's it!" She began rooting around in Ty's backpack.

"Hey! What are you doing? That's mine!" Ty exclaimed at Abby pulled it out.

"Lab Rat, can you analyze this?" She tossed the cookie to him.

"Sure, but why?" He asked, a curious look on his face.

"My day is already ruined and you're just making things worse!" Ty glared at his sister.

Abby ignored him. "Think about it you guys, we know that Pinkeye's behind this, and he was selling these cookies just before everyone began mutating."

"You think there's a connection?" Ty asked, his face softening.

"Let's find out" Lab Rat unwrapped the cookie and placed it under a scanner. A few seconds later, a detailed image popped up on the screen. "Woah! There's our answer!" Lab Rat exclaimed, his mouth dropping open. "This cookie is packed full of mutagenic chemicals!" Lab Rat began typing, his fingers a blur as they worked. Another image appeared, the mucus Abby gathered from their battle with Insectiva's insect teens. "And according to this, the chemicals in the cookie match the chemcals in the mucus you collected from battling Insectiva's drones!"

"So she was telling the truth!" Ty exclaimed, while Abby groaned in annoyance, her face in her hands.

"Boil must have purposely mutated those two with insect DNA so we'd find it, and sent them to steal that truck and protect Insectiva at the greenhouse so we'd think she was guilty" She reasoned as she shook her head.

"Leaving Lance free to flood our school with mutagen cookies!" TY finished.

Suddenly the screen crackled with static. Lance Boil's face appeared, laughing. "Well, it took you long enough to figure that out!" He chortled.

"Lance!" All three teens glared at the screen.

"Taking refuge in the gag lab, are we?" Lance smiled, glaring back at them. "Well, it won't work! Remember, I was a former grossologist, and I know the gag lab like the back of my hand, including the maze of ventilation systems connected to it from the school." Lance's grin spread wider as the agents gasped.

"What is he talking about?" Ty asked nervously, but Lab Rat smiled.

"Think again, Boil. Lockdown mode seals the vents as well. No way any of your mutant creations are getting in here!" He boasted. But Lance simply laughed again.

"Wrong, you simpleton! I know that the lockdown mode is computer-controlled, and thanks to Roger, I can hack into your mainframe and override it!"

Now Lab Rat looked worried. "Can he do that?" Abby asked, looking at him in alarm. Lab Rat shrugged, but suddenly all three of them heard a sound that chilled them, the sound of muffled clicks and thuds coming from the vents, followed by squeaking and hissing.