Sorry about not updating for such a long time. Anyway, here's the third chapter.

----------------------------------------

"I'm still hungry guys."

"Sokka! You ate a half hour ago!" Yelled Katara in an angry tone.

"Yeah, so? A man's gotta eat."

"ARGH! You are so infuriating!"

"She's got a point you know." Said Aang. "Besides we should be leaving soon. "I still have to practice fire and earth."

"Why don't you just sit back and relax. Besides we just got through the war with the fire nation at the North Pole."

"Sokka, you know Aang needs to master the elements before summer." Replied his sister.

"I know, but I'm just saying, after all we've been through don't you think we deserve a break?"

"Sokka, it's not like help will just fall from the sky!" Yelled Aang. At that moment, a bright light appeared in the ground.

"Ok, maybe not from the sky, but possibly the earth." Replied Sokka. Everyone shielded their eyes from the light. When it disappeared, there was a girl lying on the ground.

"Who is she?" Asked Katara in a curious, and unbelieving tone.

"I don't know." Replied Aang as he stared at the odd looking girl. She had long blonde hair, part of it held up in a small bun in the back, and wore black pants with a black sleeveless kimono over it. "What do you think we should do?"

"Sokka!" Yelled his sister. He was over by the girl, and was poking her with a stick.

"What Katara? I'm just checking to make sure she's alive." The girl opened her eyes and grabbed the stick.

"AH!" Yelled Sokka, as she pushed herself off of the ground and grabbed his arm, then flung him in the lake. "She's alive!" He screamed as he landed in the lake. She got into a fighting stance.

"Woah! Hold on a minute. We don't want to hurt you." Aang said as he put his hands infront of him for defense.

"Who are you and what am I doing here?" Said the girl, still in a fighting stance.

"Hey, we should be asking you that first, you're the one who came out of nowhere." Sokka said as he approached her. She grabbed his arm and threw him back in the lake. "Ok. You can ask the questions first."

"My name is Katara, that's our friend Aang, and the boy you threw in the lake is my brother Sokka." Said Katara cautiously.

The girl hesitated but put her arms down to her sides. "My name is Serena."

"If you don't mind me asking, how did you get here?" Asked Katara.

"I don't know. That's what I'm trying to figure out."

"If it's any help, there was a bright light in the ground, and you just came out of it." Said Aang.

"Did a giant worm come out of there too?" She asked quickly.

"Are you serious? A giant worm?" Said Sokka as he dried himself off.

"I didn't see a giant worm." Replied Aang.

"Of course you didn't. There's no such thing!" Cried Sokka.

"Are you calling me a liar?" She asked, her eyes locked on his.

"I'm just saying, there's no such thing as a giant worm."

"It's actually known as a Medusa worm. It comes from the Medusa clan, which is group of giant worm-like creatures. They're very dangerous and known to live in the soil, away from alot of rocks."

Sokka spun his finger around, the side of his head, signaling 'crazy.'

"Well, we didn't see what you're talking about." Replied Katara, glaring at her brother.

Appa moaned, and walked infront of the group. Serena got into a fighting stance, and prepared to attack him.

"No wait! That's just Appa, my ten ton flying bison." Said Aang.

"This demon is...your pet?" Asked Serena as she studied the creature.

"Appa's no demon. He's just a big hearted, giant fluffy bison." Said Aang as he walked over to Appa. Appa licked him. "It must be your dinner time, huh buddy?" Appa groaned excitedly.

"And that little monkey bat is your pet too?" She asked, looking at Momo.

"Yep, that's my flying lemur, Momo." Said Aang.

"Why would you think they were demons?" Asked Katara.

"Because most things like that are."

"Yeah well, I don't know where you grew up, but here they aren't." Said Sokka, still glaring at Serena.

"What nation are you from?" Asked Aang.

"I bet she's from the fire nation!" Yelled Sokka.

"The what nation?"

"Don't play dumb with us, I know you're from the...did you just say what nation?"

"You have to be from one of them. Are you from the earth, water, fire, or air nation?" Asked Katara.

"I'm from the four kingdoms."

"Wait a minute, four kingdoms? What is that?" Asked Aang.

"The good side of the world. Are you from the Dark kingdom? If you are, I'll have to destroy you."

"My brother and I are from the water tribe, in the south pole, and Aang is part of the air nomads."

"Come on guys, she's got to be from the fire nation! Just look at her attitude!" Cried Sokka.

"What's so bad about this fire nation?" She asked.

"You have got to be kidding me." Said Sokka.

"Don't you know about the war?" Asked Aang. She shook her head. Aang explained the thing about the war, and how he's the avatar and all that other stuff.

"Oh yeah, just tell her how you're the avatar, then she can capture you and bring you to the fire lord!" Yelled Sokka.

"I really don't think she knows about the nations Sokka." Replied his sister.

"The war you're talking about is alot like the war where I'm from." She said.

"There's a war where you're from? Please tell us about it." Katara said.

"Well, where I'm from, the world is divided into two parts. Good and Evil. The good side, is made up of the four kingdoms. Northern, Southern, Eastern, and Western. The Evil side, is ruled by a dark lord. He rules over the entire land in the Dark Kingdom. There are demons and monsters on that side. Recently, many demons have been coming over to the four kingdoms and attacking us. There is a war going on. In the past, evil tried to take over the world. There were four men who joined together to stop the evil. Together, they managed to defeat it, thus seperating good from evil. Each one of them created a kingdom. That's how the four kingdoms were created. They ruled over the land keeping peace and harmony. Now, the Dark lord wants to finish what was started, so he's been sending demons and armies to take over. It's been nothing but fighting and bloodshed."

"Wow. That is bad." Replied Katara.

"Isn't there any way to stop it?" Asked Aang. "Isn't there an avatar?"

"No there isn't. There's no way to stop the war. It will go on until one side wins."

"Well...you could stay with us until you find a way back home." Said Katara.

"Yeah! You can travel with us!" Aang cried happily.

"Are you serious?" Asked Sokka.

"Yeah, it'll be fun Sokka." Replied Aang.

"And now there's another girl I can talk to." Added Katara.

"Whatever you guys say, you don't listen to me anyway."

Katara started getting dinner ready, Aang was playing with Momo, and Sokka was fishing...and having no luck.

"Do you need some help?" Serena asked as she walked over to him.

"No I don't need any help." Said Sokka. "Besides, this is a man's job."

"Well, I don't see any men around here." Replied Serena angrily.

Katara and Aang were giggling.

"Oh yeah? You think you can do better? Then here, you fish!" He gave her the pole.

"I don't need a fishing pole." She put it on the ground and walked over to a bush that had some berries in it. She took some and went back to the lake. She put them in the water, and took her shoes off and rolled her pants up and stepped into the water and waited. a bunch of fish went for the berries, and she grabbed the fish. She caught about ten fish and brought them over to katara.

"Still think it's just a mans job?" She asked Sokka. He was angry.

They were eating dinner when Serena looked into the forest. "Hey, I'll be right back." Said Serena. She went into the forest and listened. It was far too quiet. The ground shook, and she jumped into the trees and stood silently on a branch. The medusa worm came out of the ground. It was heading for the lake where everyone else was. Serena didn't have her swords since they were in her backpack at the camp. There was only one thing she could do. She jumped from the tree and landed on the ground. The worm turned its head toward her. She ran deeper in the forest, and the worm followed her. It went underground.

She continued running on, she had to make sure that thing didn't go to the camp. Nobody would be prepared for it. They wouldn't even have the slightest idea how to stop it. That's when it happened.

She ran through the trees and into a clearing, of people. A boy stood infront of her, and grabbed her arms. She realized he had to be about her age, but as she thought she realized he was fire nation, due to the description Katara had given about what type of armor they wore. The unusual thing about him was the fact that he had a scar.

-----------------------------------

Yay! I finished the chapter! You people should be smart enough to figure out who it is. If not...wow. I don't know what to say. But, you should enjoy the next chapter. It'll be funny. Bye!