Chapter 1

"Alright class." Miss Bitters said. "This week we are supposed to learn about being healthy even though horrible diseases are inevitable and the health board of this skool has probably made it so you have one right now…" Some students winced when their teacher said this. "So we are going to watch a video about germs and how to prevent them." The tall thin woman brought down a large TV screen and placed a video cassette into a VCR that was attached. On the video, it showed a bunch of green amoebas with angry faces coating a whole room.

Zim yawned while some of the other kids had a sudden urge to wash their hands. He had been a germaphobe once before and didn't see any reason to panic about it now. On the other side of the classroom, Dib was staring at Zim, wishing there was some way he could prove that the green kid was an alien. But how? There had to be some way. Dib placed his head on his hands and day dreamed about the day he would no longer be called crazy.

Suddenly Miss Bitters' phone rang. She paused the video and answered the call.

"Hello, this is Miss Bitters' class…" She said. There was some inaudible talking on the other end. "What? Why? Well…ugh…fine…when? Alright then." She hung up with a growl and put the TV screen away.

"Well class, due to it being health week and a recent outbreak of a virus called Moon Pox; everyone is required to get a vaccination at the skool nurse's office. So everyone has to line up and we'll head there right now and get it over with." She grumbled. Everyone got in a line, and coincidentally, Dib was behind Zim.

"Well, Zim, once the nurse inspects you, she'll realize you're an alien!" He said.

"Nonsense, Dib. I'm a normal human earth boy who has gotten a vaccination before. And don't forget how she complemented me on my health when she cured my head pigeons." The Irken replied. Dib scowled and then they all left the class and went down to the nurse.

"Alright, who's next?" The nurse said. Zim peered over the heads of the few kids in front of him. He recognized her by her wide smile and curly short brown hair. She was wearing a pink and red uniform instead of a green one today. He gulped as a young child walked up shaking in fear. Then the nurse took a long needle and injected something into the child's arm. The child cried out in pain for a second and suddenly went silent.

"Oh. So that's it?" The kid asked.

"Yep. Now here's a colorful band aid and a sticker." The nurse placed a purple band aid on the students arm and placed a smiley face sticker that said "I got my Moon Pox shot today!" The smile had awful teeth though.

"Once it's your turn, Zim…" Dib said. "She'll be able to realize you aren't human by seeing your green skin and things. Then it's a nice trip to a hospital, and then a lab, and then you'll be experimented on!"

"Nonsense, Dib. I'll be fine. It's just a…shot." Zim looked forward to see he was next. He could've sworn there were more kids in front of him. The Irken walked over to the nurse who pulled out a needle.

"Oh, I remember you." She said cheerfully. "You were that kid with head pigeons."

She took his glove, but instead of pulling it off she rolled it down until she saw the alien's green skin. Then she picked up the needle, but before she could even let it touch him…

"AH!" Zim exclaimed. He started squirming around like crazy. "NO! NO! NO! NOOOOOOOO!"

"Sweetheart, this isn't going to hurt, you'll just feel a little pinch!" The nurse said calmly. Zim continued flailing about, screaming and avoiding the shot. Miss Bitters, who was keeping an eye on each child, growled.

"Restrain him!" She commanded. A couple robots came down from the ceiling and held Zim down. He began shaking and screaming even louder.

"NO! STOP! NO! DON'T DO THIS TO ZIM!" He cried out. Then the nurse held his arm steady and gave him the shot. Zim calmed down and stopped shaking. But he was still wide eyed.

"There we go. We're all done now!" The nurse said. "Now that wasn't so bad, was it?"

"Um…n-no!" He mumbled.

"Now you get a colorful band aid and a sticker." The nurse put a pink band aid on his arm to go along with his clothes and placed one of the stickers with the goofy smile on his uniform. "Okay, you can head back to class now. And don't worry if you have any symptoms such as a headache. That's just a side effect of the vaccine."

Zim stood up and left the nurses office. Dib just glared.

"See? I told you I'd be fine, Dib stink!" Zim smirked. Then he continued down the hallway.

"Ugh…" Zim groaned as one of the last two classmates entered the room. While waiting for Miss Bitters, everyone in the classroom was talking. Like the nurse said, he had a headache, but the one thing he wondered was why it was so bad? His head was pounding mercilessly. The noisy classroom just made it worse.

"What's wrong, Zim?" Dib asked with a smile. "Feeling sick? I wonder why. Maybe that vaccine isn't doing what it should to your alien body."

"I feel fine." Zim tried to shake off the pain. "I just have a headache like the nurse said. It's completely normal."

"Okay then." Dib went back to his seat, but he kept an eye on the Irken.

"Alright class." Miss Bitters entered the room with the last student. "Now that that's over with, we can get back to watching the video." She pulled the screen back up and continued the video from where it left off.

Zim placed his chin on his desk. Finally the class was quiet and his head didn't hurt as much anymore. But he began to feel ill. Everything was a bit fuzzy and now his squeedily spooch began to ache. He moaned and closed his eyes. Maybe he could nap during the movie. His eyes snapped open again. No, he couldn't sleep. What if something…well…maybe for a few seconds. He closed his eyes again. Then he fell out of his chair.

"Zim!" Miss Bitters said. "Sit back down. This isn't nap time!" The whole class' attention turned to their sleeping classmate. "Zim! I said sit back down!" She walked over to him. One of the girls in the class got out of her seat to get a closer look. It was the same with some of the other students.

"YOU!" Miss Bitters pointed at one of the girls still in her seat. "Wake him up!" The girl walked over to Zim and shook him with her foot.

"He won't wake up, Miss Bitters!" She said. The teacher growled and tried herself. But she shook him really hard. He didn't budge.

Then some of the students began to panic. Miss Bitters walked over to the phone and called 911.

"We have a student here who's unconscious. Send some help." She said with no concern in her voice. Dib stared at the Irken who was on the floor. The boy smiled. Finally, it was his chance.

Pikuro: Alright, this is my second Invader Zim fanfic! Yay! ^U^ This first chapter, in case you didn't notice, had "Dark Harvest" references. And don't worry! Gir will be in the next chapter! PLEASE REVIEW!