Kai looked up at the wall of Chin's Castle. I he was caught, his entire family would be punished by Chin the Conqueror. Kai was an Earth-Bender born in a small Earth Village. He was born unable to talk, so it was difficult for him to make friends. He was only 14 and he wished he could escape Chin's rule and go to the Fire Nation. Who knows? Maybe he could go to one of the Water Tribes if that didn't work. But, he couldn't. He walked around the woods surrounding Chin's Castle regularly. It reminded him of his parents, who both died trying to defend their village from Chin when he was 10. He didn't have a place to stay, and most people in the Village didn't even know his name. Everyone who did was either imprisoned or dead. No one knew he existed. Sure, they saw him around the village from time to time, but not frequently enough to remember who he was. Kai just shook his head angrily. He kicked the tree next to him. To his surprise, the tree was hollow. He looked in the tree to see a small box. He opened the box to see a note with a mask underneath it. He read the note.

The note said:

Dear Whoever is reading this,

You have found the Blue Spirit's Mask. It is your job to use this mask to stop crime around the Earth Kingdom. Though, it will be tough, I know you can do it. I know you've heard of the Blue Spirit, so don't try to just walk away. It's your duty to continue on the Blue Spirit's Legacy. In this tree trunk, you will find all the equipment you will need to become the Blue Spirit. This includes:

Blue Spirit Mask
Dual-Swords
Black Clothing

If you think you're going to just walk away from this, you're wrong. If you decline this offer, someday a thug that you could've stopped will come and rob or kill someone you love. And you'll blame yourself because you'll know it was your fault for not stopping him earlier. Make the right choice.

-The Former Blue Spirit

Kai looked at it strangely. It was amazing. He had never been given a responsibility before. And now he had a huge one. He put the black clothing on. He equipped the Dual-Blades, even though he had no idea how to use them. And finally, he put on the Blue Spirit Mask. He looked up at Chin's castle. Chin, here I come, he thought. He used Earth-Bending to stick to the wall and climbed up it. Once he was at the top, he looked over the edge. Two guards. Both were facing away from him and were walking to the guard towers on the two corners of the wall. He snuck up silently. He was thankful it was night. He slid down the other side of the wall. He stayed in the shadows, he wasn't taking any chances. He crawled along the ground toward the inner keep. He narrowly avoided the guards' torchlight. He finally got to the inner castle. Chin was surely in there somewhere. He crawled up the wall and into an open window. He realized to late he had just crawled into the guards' sleeping quarters. He stepped carefully around them to the door. He cracked it open and looked out. A guard was in the hallway, coming toward the door. Kai looked around, trying to find a way he could get out of this. Right before the guard opened the door, Kai jumped and stuck to the roof. The guard walked in and didn't even notice him. Kai slipped out the door before it closed. He tip-toed and peeked around the corner. Two guards were talking.

"I dunno. Chin doesn't really know what he's doing. Taking over the entire continent? It just seems, so… extreme."

"Hey, you gotta problem with the boss' problem, you take it up with him."

"Well, I just think it's weird how he just ups and decides to attack. I mean, talk about power, the guy rallied up this army in, like, 2 hours! It's like he's somehow possessed by a demon who wants him to do it."

Kai snuck around the corner and knocked them both out with Earth-Bending. He walked down the hall and into the next room. He felt the ground. He tried to feel vibrations. According to this, Chin's quarters were two rooms away. He walked into the first. It was the dining hall. No one in here except one servant who was cleaning up the table. Kai snuck in and tried to sneak to the next room, but he stepped on a creaky board, letting out a loud creaking noise and alerting the servant. The servant looked at the Blue Spirit in disbelief.

"B-bu-but, y-your th-the b-b-b-b-b-b-b-b-" the Servant blubbered.

Kai jumped over and put a hand on his mouth. He put a finger to his lips. The universal sign for "SHHHHHHHutup". He took his hand off the Servant's mouth. The servant backed up and cleared his throat. He looked over at the door Kai was trying to get to.

"Don't got through there. Go through here," the servant said, walking over to one of the pillars holding up the room.

He pressed an almost invisible button on the pillar. The pillar rose up, revealing a small hole, with a ladder down it.

"If you go through that door, you'll get trapped. You can only go through that door from this side, and only Chin knows the way to get into his room from there. If you go down here, you'll pop up under Chin's bed," the servant explained.

Kai nodded to him. He dropped down the hole. He walked down two corridors and found a ladder leading upwards. He climbed up it. Sure enough, he was under Chin's bed. He could hear the Conqueror snoring. Kai stood up next to the bed, his Dual Swords drawn. He placed one on Chin's chest. He raised it up, ready to strike. Suddenly, a rock appeared and smacked into Kai. He stepped back in pain. Chin was suddenly up and ready to fight.

"So, Blue Spirit, we finally meet. You have come here to kill me, yes? Well, we'll just have a little duel and see who wins. Set down your blades and let's make this a fair fight, eh?" Chin smiled.

Kai didn't move.

"I said, let's make this fight FAIR!" Chin shouted, throwing a rock that knocked his Dual-Blades out the window.

Chin threw three rocks at him. Kai blocked all. He countered with some rocks of his own. They were tearing down Chin's room to kill each other. Kai eventually just jumped out the new hole in the wall and down to the outer wall. Chin followed hurriedly. The guards tried to intervene, but Chin refused their help, and even killed one of them. Chin picked up a big part of the wall and threw it at Kai. Kai ducked it and summoned up another rock, throwing it at Chin.

"Well, we now know one thing for sure; the Blue Spirit is an Earth-Bender!" Chin smiled.

Kai (of course) said nothing. He threw four more rocks at Chin. Chin summoned up a wall of rock to block them. When he lowered the wall, Kai's foot met with Chin's face. Chin staggered back, holding his nose. He threw one more rock at Kai, cursing him.

"You will pay for damaging the Great Chin!" Chin roared, picking up a gigantic rock.

All Kai could do was dive off the wall. The rock hit the wall with such force though, it made the wall crumble. Kai landed painfully on his foot, and he definitely heard something crack. The wall was falling around him. No one saw a rock crush the Blue Spirit, but no one could have survived that. The guards were ordered to retrieve the Blue Spirit's Mask as a trophy for Chin. They threw rock after rock away. But, to everyone's surprise, there was no mask, no swords, no clothing, and no body. The Blue Spirit wasn't there as if he never was there.