A/N I hope you have fun reading this story, it is my first Marauders fic, please read and review

Chapter 1. Snape's Marking Potion

Mr. Black, could you finally pay attention!" The voice of Professor McGonagall shouted through the classroom.

A boy with long black hair looked up shocked.

"O-of course, Professor," he stumbled. Looking at his three best friends who were laughing silently.

"And I thought you wouldn't get scared by McGonagall this year," his black short haired bespectacled friend said.

"And you too Mr. Potter, this is not primary school!" Professor McGonagall said.

"S-sorry Professor, w-won't happen again," he also stumbled. He dared not to look at his friend.

"Now, when the little children stopped playing I can continue my lesson about Animagi. As you all know the animagi can…"

"Homework for next lesson: I want an essay about the restrictions that were set when Professor F. Ox invented the Animagi Ritual, one roll of parchment! Class dismissed!" said Professor McGonagall. The Marauders as they called themselves picked up there books and left the classroom.

"One roll parchment! One roll! Damn that at least going to cost one evening of our free time!" Sirius said angry.

"Do you really think that Padfoot, we know everything about Animagi, at least I also know the restrictions," Remus said. Remus was the smart one of the group, he had brown hair and looked very tired.

"Thank Merlin we have you Moony," the fourth one said called Peter or Wormtail. He was small and a little overweight. Sirius sighted and looked at James who was watching a piece of parchment.

"What are you doing Prongs?" he asked.

Suddenly a red-haired girl stepped out of the classroom and looked confused at Sirius.

"Correct me if I'm wrong, but did you called Potter, Prongs?" she said.

"Yeah he did, so what?" James said putting away the piece of parchment.

"That is so idiotic, nicknames, so childish also," she said, she turned on her heel and walked away with some girls.

"Just ignore them Prongs," Remus said quietly.

"Why were you checking the map?" Sirius asked.

"Not here, let's go to the unused classroom in this corridor," James said. He walked away and the other three followed them. He opened the door with a soft alohomara and they walked in. Peter lighted some candles and sat down on a table next to Remus, James handed the map to Sirius and he opened it and watched it carefully. He sat down at the teachers desk.

"So what you're up too?" Remus asked.

"I needed to know if the Potions Master, Professor Rumble was away from his filthy office," James said.

"What do you need to do in his office James?" Peter asked insecure, squeeking from excitement.

"Some….ingredients" James said looking at Remus.

"The polyjuice potion, of course, how could I forget, you told me a month ago," Remus said slapping his self on the head.

"Polyjuice Potion? Why do you need Polyjuice Potion?" Sirius asked still looking on the map.

"Our best "friend" and potion expert Snape has a recipe for great marking Potion, which we can use to improve the map," James said.

"How did you find out," Sirius said a big smile on his face.

"About 5 weeks ago, when I had detention with Rumble, Snape entered the office and told him all about how he finally found the solution about an extra essay for Potions he asked for," James said.

"He asked for extra homework? How stupid can you be?" Sirius said with a confused look on his face.

James ignored him.

"Anyway, he was talking about a marking potion which marks people on a map, like ours only better, now…" He stopped in mid-sentence because suddenly the eyes of Sirius widened.

"Quickly, get out of here, McGonagall is coming!" Sirius yelled. They got their stuff and quickly ran under a carpet at the backside of the classroom. Just in time because McGonagall opened the door.

"Strange……" she mumbled, with a wave of her wand she dimmed the candles and closed the door.

Four boys about sixteen years old just started there 6th year at Hogwarts walked through a carpet which just hang there for decoration and to hide a secret passage way. Still panting they stopped walking.