A/N: Wow, so many reviews! I feel so loved! Thanks to all who reviewed! Oh, and sorry about forgetting the disclaimer in the last chapter. Here it is:

DISCLAIMER: I own what I own and I don't what I don't. More details later.

Oh, and I'm pretty sure everyone knows what the mystery cross is, so popcorn shrimp for everybody! And I'd like to request that no one use cuss words in their reviews, I don't like them. Thanks!

Replies to Reviews:

Anghammarad: I'm sorry you feel tormented, but at least I got you're interest! Don't worry, I should be updating new chapters often. Hope you like this chap.!

Darkcloud1: Thanks for keeping it quiet; don't worry, I wouldn't have wished you dead if you'd given it away. XD Glad you liked my beginning! Here's an update for you!

Sirka: Glad you like my idea! And I'm flattered that you compared me with the best you've known! There's no need to worry about me dropping the story, though; I've already pre-written the whole thing!

Brimmstone: Glad you're looking forward to it! Did you really send this link to your neice? Aww, I'm so flattered! Thanks for reviewing!

ron-sama: Well, I hope I live up to your expectations! Here's an update for ya!

charizardag: I do actually know people who know Kim Possible but have never heard of DP. And I checked out your stories; sorry, I'm not really a Yu-Gi-Oh fan. No offense meant!

theferretmenace: Glad ya could review my fic, and glad ya like it! Yes, it is a kp/dp crossover!

Daeron Blackoak: Glad it caught your interest! (Riverfox237 smiles knowingly) I'm not telling or giving hints! You'll just have to keep reading to have your questions answered! Oh, cool, you think I'm doing great work? Thanks! (The answer to the question of who stole the portal will be revealed in chapter 3.)

And now, here's the next update! (Sorry to anyone who finds the chapter titles a little cheesy.)

Ch. 2: Meet The Fentons

A half-hour after school had ended, Kim, Ron, and Rufus were exiting a private jet in a field outside of Amity Park. Kim turned to the owner of the plane, a heavy man in a white coat and cowboy hat. "Thanks for the lift, Pop Pop Porter," she said sweetly. Pop Pop waved the thanks off with his hand. "Why, you don't need to thank me, little missy. It's the least ah could do after you returned mah flash freezer and saved mah business."

"No big!" she replied. Stepping off the plane, the red-haired girl waved until the plane had lifted off. Then she turned to her partners. "Okay, Ron. Let's go."

As they were walking through town, Ron asked, "So how will we know which house it is?"

Kim pointed. "I don't think it'll be too hard." Ron looked where she was pointing and saw a house on the street corner with a huge sign on top that said Fenton Works.

"Ohhhh, riiiight." Ron nodded as if it all made sense. "I should have known that the house would be labeled.

A few minutes later they were standing on the porch and ringing the doorbell. Suddenly the door flew open and a huge man in a suit the color of a traffic cone was standing in front of them. In a loud voice he cried, "Who are you and what do you want? And if you're a ghost-"He was cut off as a red-haired woman in a blue haz-mad suit appeared.

"No, Jack, these are those people you sent for," she said calmingly. "About the portal. Remember?"

The man stood there with a stupid expression on his face. Kim took this opportunity to introduce herself. "Hi, I'm Kim Possible. This is Ron Stoppable. Are you Jack Fenton?"

A light seemed to come on in Jack's head. "Oh, yes! I called you about the Fenton Ghost Portal being stolen."

Kim and Ron stared at him. The woman smiled and said, "Please, would you like to come in?" They nodded dumbly and followed the adults inside. Ron finally regained control of his tongue. "Excuse me, but did you say 'Ghost Portal'?"

Jack was suddenly staring him in the face. "Why, have you seen one? Or for that matter, have you seen a ghost?" Ron shook his head nervously, and then tried to hide behind Kim.

"KP…," he said nervously.

"Why don't you show us where the crime took place?" Kim suggested.

"Right! To the lab!" Jack shouted. Ron sighed with relief that the over-excited man had left him alone.

"This way, Kids," The woman said cheerfully. "By the way, my name's Maddie Fenton."

"Nice to meet you, Mrs. Fenton." Kim replied as they walked through the house. They came to a door and walked down a set of stairs. Soon they were in a large room lined with desks covered in bizarre silver electronic equipment. Ron picked up a strange ray- gun-like object.

"Oooo," he said happily. "Shiny. Hey what's this thing do?" He pressed a button and instantly the gun shot a mass of glowing green goo against the wall. "Badical!" he said admiringly, his eyes practically glowing.

"Ah yes," Jack said proudly. "That's the Fenton Goo Gun. Guaranteed to trap any ghost in a web of ectoplasmic goo. I have an extra one if you want it." He pointed to an identical gun on another part of the desk.

"Booyah!" Ron cheered. Then he accidentally hit the trigger again and coated another wall in goo.

Kim snatched the gun away from him. "I think I'd better hold on to this," she said warningly.

"Awwww," he whined. "I never get anything cool." Rufus, who had been watching from the pocket of Ron's cargo pants, shook his head sympathetically.

Kim was just turning to examine the gigantic hole in the wall when a boy slightly younger than her with raven-black hair came down the stairs. He started, surprised. "Oh, sorry. I didn't know we had company."

"Danny!" Jack cried. "I'm glad you showed up. I'd like you meet some people. This is-" A blank expression came across his face again. Maddie Fenton leaned over and whispered in his ear. "Oh, right," he said brightly. "Danny, this is Karen Possible and Don Stoppable!" Maddie clapped a hand to her face in exasperation. "Karen, Don, this is our boy, Danny."

"Hi," Kim said pleasantly. "I'm Kim, and this is Ron. Nice to meet you." Then she noticed something in his hand. "Hey, what's that?" she asked, curious.

"Oh, uh, it's nothing," Danny replied quickly. He tried to hide the thermos-shaped thing behind his back. Glancing at the wall, a thunder-struck look came to his face. "Hey! What happened to the portal!" He practically yelled.

"That's what we're here to figure out," Kim told him seriously. Then she looked around. "Now, can you tell me where exactly this 'portal' was when it was stolen?"

Before Jack or Maddie could answer, Danny pointed straight at the monstrous hole. "Right there," he said matter-of-factly.

Kim stared at him for a moment, and then looked back and forth from Danny to his parents. They all had serious expressions on their faces. Well, except for Jack, who apparently lacked the capacity to be serious. Kim held her arms up in a time-out position.

"Whoa. Time out," she said doubtfully. "Are you telling me that someone stole this portal-thing right out of the wall?" They all nodded. Kim pulled out the Kimmunicator and paged Wade. "Wade, I want you to scan this large hole and tell me how big something would have to be to fit inside of it." She held the Kimmunicator up towards the perfect-shaped hole. A red scanning ray came out of the top. After a few seconds, Wade had finished his analysis.

"Whoa!" he exclaimed. "The thing in that hole was over 6 feet tall and went back into the wall even further!" He was looking at his computer screen with a funny look on his face. "Here," he said finally, "I'll patch through a copy of the results." There was a light buzzing sound as a sheet of paper printed out of the top.

Kim studied the sheet of statistics, glancing at the hole periodically with a troubled look on her face. After a long silence, Ron asked, "What's wrong, KP?"

Kim stepped into the hole and ran her hand against the curved wall. "Ron, feel this wall," she commanded. "You notice anything strange?"

Ron rubbed his hands against the walls of the circular hole, a look of concentration on his face. Danny had moved closer, staring intently. Finally Ron turned to Kim and said simply, "I got nothin',"

"They're too smooth," she said, confused. "It's almost like whatever was in here just…disappeared."

Everyone had gone into a deep-thinking state when Jack broke the silence, saying, "Well, this is fascinating, but I have to make a pit stop. You kids have fun with your investigation." He rushed to the stairs, muttering, "I knew I shouldn't have had that leftover bean dip for breakfast."

Maddie Fenton looked at her watch and gasped, clapping a hand to the side of her face. "Oh my goodness! I was supposed to meet Jazz 10 minutes ago!" She, too, ran to the stairwell, but stopped at the bottom. "Sorry, kids, gotta go. If you need anything, Danny can get it for you. Bye!" And with that, she was gone.

A/N: Yeah, I know, not the best place to end the chapter, but if I'd ended it where I was planning to, it would have been extremely long, and I wanted to devide it up a little more. By now it's probably painfully obvious to most of you what the mystery x-over is, so feel free to actually write it in your reviews this time! Thanks for readin', and I'll try to have the next chapter up tomorrow! (Shouldn't be too hard, 'cause the whole story's already pre-written! So no one has to worry about me suddenly dropping this fic.) Please R&R! Riverfox237 signing off!