Alright, a brand new fanfic. Here's the first chapter. It begins where Ben and Gwen go off exploring and end up coming across a cave they have never seen before and discover the underground secret tunnels. Enjoy!

"It's not fair! He started it!" shouted Ben

"I don't care! You still got in a fight!" shouted Carl

Yep, it all started with a fight at school. Ben would have ended it easily with the Omnitrix, but his grandfather warned him not to use it at school, home, or any other place in Bellwood. Even though it was hard to follow Grandpa Max's rule, Ben knew that it was only for his protection. Well, Ben was sent home early from school that day. Carl and Sandra were surprised to see their son walk through the door so early, but they soon learned why which made them angry.

"You guys aren't even listening to me! Why can't you take my side for once?" asked Ben

"You're not supposed to be fighting at school! We raised you better than that Ben!" said Sandra

"So what was I supposed to do, let him shove me in a school locker again?!" said Ben

"You were supposed to find an adult or run!" said Carl

"Great idea, then I'd have a whole new set of problems at school," said Ben

"That's it Benjamin, go to your room! I don't want to hear another word out of you for the rest of the day!" said Sandra

"You know what, I wish I never came home from my road trip with grandpa or even yet, I wish I had disappeared so I could never come back to this place!" shouted Ben

"Keep up that smart mouth and you won't get any dinner!" snapped Carl

"Go ahead! I wasn't going to come out anyways," said Ben

Carl and Sandra were left stunned while Ben made his way into his room and slammed the door. He couldn't believe that his parents wouldn't listen. What kind of parents were they anyways? Ben laid down on his bed for awhile and read one of his favorite comics. After an hour or so has passed, he grew bored and started regretting those words he said to his parents because he was beginning to feel hungry. That's when Ben came up with an idea.

He emptied his backpack and then filled it with his candy stash, money from his piggy bank, comic books, a notebook with his drawings, a pen, and a flashlight. Ben wasn't sure what he would need with a flashlight, but his grandpa taught him to always carry one because you never know. After his backpack was filled, Ben opened his bedroom window slowly and climbed out as quietly as he could. He then tiptoed away until he was far enough from the house then he took off running. There was a park Ben was going to that was outside of Bellwood. He knew that he wasn't allowed to go there on his own, but Ben didn't care. He just wanted to have some time to himself and away from everyone else. As he was getting closer to leaving Bellwood town, he stopped at a candy shop and bought some of his favorite candy bars. After he paid, he ran outside, went around a corner, and then bumped into someone. They both fell to the ground.

"Hey, watch where you're going!" said the person Ben crashed into

Ben knew that voice anywhere. He looked up to see that it was his cousin, Gwen. Ben continued to rub his head as he and Gwen got up off the ground.

"Where are you going in such a hurry?" Gwen asked

"Since when do you care butt face?" Ben asked

"Well for one thing dweeb, you're not allowed to come to this side of town by yourself so where are you going?"

"Well neither are you! What's your excuse for being here?"

"I'm on my way to a friend's house to do homework so I got permission. Now where are you going?"

"Away, now make like a bee and buzz off!"

"Are you running away from home?"

"I just need time to myself. Goodbye Gwen."

"Ben, Ben wait!"

Ben continued to walk with Gwen following him. If there's one thing Ben knew was that his cousin Gwen will stick around when something is bothering him. As much as he hated being followed, there was no way to talk Gwen out of it so Ben didn't care and decided to ignore her. As they left Bellwood, they soon came to the big park. It was empty, just as Ben had hoped for.

"Just so you know, It's going to take me longer to get my homework done," said Gwen

"Well no one asked you to follow me," said Ben

"Hey, if I wasn't around, you would get lost on the way home. I really hope you snap out of this soon."

"No, I plan to stay in this park for awhile."

"Ben, we're both going to get in big trouble if we don't go back home soon."

"Alright, if you let me walk around this park for awhile, we can go home."

"You promise?"

"Promise."

Ben and Gwen began walking around the huge park. Ben was enjoying it more than Gwen, but only because Ben was in no hurry to go back home. It wasn't long until Ben spotted a cave.

"Hey Gwen, look at this," said Ben running towards the cave

"A cave? I've never seen this before," said Gwen

"Come on, let's go explore it."

"No Ben! We don't have time for this. We're supposed to be heading back home remember? You promised!"

"Come on Gwen, I think we have time to explore this cave. It's a good thing I brought a flashlight."

"Alright, but after this let's go back."

Ben dug through his backpack until he found his flashlight. As he turned it on, he and Gwen entered the cave. The light of the entrance soon faded away and they were surrounded by darkness. Nothing to light the way except Ben's flashlight.

"Oh this is so cool!" said Ben

"And creepy," said Gwen

"What's the matter, you scared?"

"I'm not scared. It's just filthy and probably full of spiders."

"Like this one!"

Ben held a good size spider by it's leg and waved it around in Gwen's face. She started backing up and freaking out.

"Get that thing away from me!" freaked Gwen

"Why? I think it likes you!" said Ben

Suddenly, Gwen lost her balance due to the change of the cave's path and tumbled downwards and the same happened to Ben. Gwen crashed to the cave floor landing in the dirt and then Ben fell on top of her.

"Ow, that hurt," said Ben

"GET YOUR BUTT OFF ME!" screamed Gwen

"Thanks for the soft landing. I guess you're not completely useless."

Gwen shoved Ben off and then dusted herself off while she got up. Ben grabbed the flashlight and also got up. He shined the light around and noticed tunnels.

"Gwen look, secret tunnels!" said Ben excitedly

"Don't even think about it dork! We need to go back now!" said Gwen grabbing Ben's arm

Ben pulled his arm away and ran into one of the tunnels. Of course, Gwen followed to stop him from going any further. When Gwen finally got close enough to Ben, she tackled him to the ground and pinned him down to get his attention.

"Listen up geek, I've had enough of this! You've had your fun, I've been patient. It is time to go home now! You promised! It is getting close to dinner time," said Gwen

"At least you get dinner tonight," said Ben

"I knew it. You were running away from home. You're so dead when you get home."

"I'm not looking forward to it."

"Well you'll have time to think of something to say to your parents on the way home. Now let's go."

As Ben and Gwen turned back to go back to the cave entrance, they froze. Neither one of them were thinking about the tunnels they were running through. There were so many of them and they didn't know which one lead to the cave entrance.

"Ben, which tunnel did we run through?" asked Gwen

"I think it was that one," he said pointing

"Are you sure?"

"Maybe it was that one."

"Oh that's just great!"

"What's the matter?"

"Don't you get it dweeb? We're lost down here!"

"Oh boy."

"Well, you got us into this mess, so I guess it's up to me to get us out. Give me that flashlight!"

Gwen snatched Ben's flashlight and entered one of the tunnels. Ben groaned as he followed. So they were lost. Ben didn't really find it a big deal, but since he's stuck with Gwen he wanted to get out of the underground tunnel and cave just as bad as Gwen.

"This is going to be a long night," Ben said under his breath

End of Chapter 1. Sorry that it was a bit short. I'll do my best to make the next chapter longer. I hope you look forward to it. Feel free to review.