A/N: This is my first fan fiction ever so I hope you guys enjoy it. Feel free to review! I appreciate your encouragement as well as your criticism and suggestions. Sadly, I do not own Scooby-Doo. It is copyright of Hanna Barbara and Warner Bros.

Chapter 1:

We find Scooby-Doo and the gang cruising in their ever faithful Mystery Machine heading towards their hometown of Coolsville.

"Jinkies! Who would've guessed little, old Coolsville would be a site of a murder." Velma said.

"I know," Fred agreed. "There hasn't been a murder there in over twenty years."

"Like, we sure picked a baaad time for a homecoming. Whadya say we come back next week."

"Ror Rear." Scooby added.

"Yeah, or year. Whenever that crazy kook's outta town." Shaggy said.

Daphne rolled her eyes, "Oh, cut it out you two. It's been forever since we've solved a mystery in our old town. Who did they say was murdered again?" Daphne asked.

Velma picked up a copy of The Coolsville Chronicle and read aloud, "'Senior Matthew Palmer was found dead in the Jeanette Lloyd Theatre at 3:25 p.m. Thursday, May 14th. Apparently working on the lighting fixtures, he fell from the catwalk to his immediate death. The police have yet to determine if this was an accident or homicide.'"

Shaggy stared at the picture of the young man of about eighteen. He was skinny with brown curly hair, blue eyes , and a bit of a goatee. His smile was so warm, he looked like the kind of person you would like right away.

"Hmmmm…Matt Palmer…yeah, I remember that guy. He was in my gym class my senior year. He was a pretty cool dude. He was the only guy that could run almost as fast as me. And he could eat too." Shaggy chuckled.

"Poor guy," Daphne sighed, "just a few weeks from graduation and he gets killed."

"Yeah, and I don't wanna be next!" Shaggy whined and held his best pal.

"Re Reither," Scooby added.

"Just relax you two. Nothing's going to happen. Besides, coming back to Coolsville means eating at Manny's All-You-Can-Eat buffet." Velma teased them.

Shaggy and Scooby's eyes bulged and mouth's watered, "Step on it Fred! We got a mystery to solve and a meal to eat!"

* * * * * * *

The gang stopped in front of a rather small two story brick building. The sign in front of it read, "Coolsville High."

"Never thought I'd be back here again." Fred remarked as he and the rest of the gang passed through the large glass doors.

"Ahhhhh…this place sure brings back memories," Velma reminisced. "I wonder if the chemistry lab still has my old water purification system I made in the 10th grade."

As they made there way through the foyer they were greeted by a man in his late fifties. He was about 5'7, medium build with graying hair, brown eyes, and wore a grey suit with a white shirt and red tie. Although he was old, he looked fairly strong. Probably kept in good same chasing kids all around the school.

"Hello, my name is Mr. Anderson. I'm the principal here. You must be Mystery Inc. Thank you so much for coming to help on such short notice. I want to make sure we find out what happened to Matt as soon as we can." he extended his hand toward Fred who shook it heartily.

"Happy to help Mr. A. We're just as anxious as you are to find out what really happened to Matt Palmer," Fred said as Mr. Anderson shook hands with the rest of Mystery Inc., even Scooby.

"Are you new?" Daphne asked. "I don't remember you being principal when we went here."

"Yes, Mr. Thake retired to Miami two years ago and I was hired to take his place. I have enjoyed my time here so far. There seems to be a good batch of students here," he paused, "Except Matt's killer of course," he noted solemnly.

"So what exactly are we going to be doing again?" Velma asked. "You were very brief over the phone.

"You four will be working here undercover as new students. I have you signed up for some of the same classes Matt took, as well as some his close friends took so we can monitor them and maybe find out if they had something to do with it," Mr. Anderson informed them.

"Rwhat arout re?" Scooby asked with a sad look on his face. He didn't want to be left out.

"Oh. I have a very important job for you Scooby. You're going be dressed up as a janitor, roaming the halls and let me know if you see anyone doing anything suspicious. Got that?"

Scooby saluted in reply.

"Gotcha…uh…so like does all that include lunch?" Shaggy asked.

"Absolutely. The cafeteria is an excellent place to observe students and listen in on their conversations to see if you can pick up anything on Matt's death. Plus all your meals will be at the expense of the school."

Shaggy and Scoob's eyes lit up and high fived each other, "Well, let's get to work!" Shaggy said.