The Stranger's Aid

The trio took a good look at the new arrival, he was dressed in black boots and black trousers along with a green and black hooded jacket that perfectly fit him and appeared to be made of scales. The forearms were green, and they could see patches of green right on the middle of his sides.

The new person's hood was up and his back was facing the trio so they had no idea what he looked like from the front. The fire nation members who were able to take a look at him from the front had actually taken a step back in what looked like fear.

"You?" Zuko breathed out in shock as he looked at the new arrival. "What are you doing here?"

"I am terribly sorry about this, Zuko." The new arrival said in an apologetic voice just as the two previously thrown fire nation members stood up, no sooner than they had they were sent flying into two other fire nation soldiers thanks to the air blasts that shot out of the stranger's hands.

Zuko growled and sent a fire blast at the stranger, the new arrival easily dealt with it by slapping it away with a back hand, as if he was dealing with a fly, something which only served to infuriate Zuko who began sending more attacks.

"Avatar," The new arrival called while he continued to block Zuko's attacks, mostly with airbending but sometimes he would strike it away in a way that only a firebender could. "if you want to make your escape then now's the time. You don't have room for one more, do you?"

"Uh...yeah, we do." Aang blinked before he and his friends all jumped up onto Appa, their eyes shifted back towards the stranger.

"Take off, I'm coming!" The stranger said after dodging a particularly powerful fire blast.

"You heard the man, yip-yip!" Sokka quickly called out, Appa grunted before he slapped his tail down and began taking off

"This was fun but I've got to go, see ya Zuko." The stranger said before he waved his hand and a wave of green fire shot out from his palm, the flames headed towards Zuko and crashed onto the ground in front of him, causing the Prince and the other fire soldiers to take a step back to avoid getting burnt. The stranger quickly took full advantage of that distraction and turned before he rushed towards Appa, using his air bending to increase his speed.

Appa got into the air, the stranger jumped up and two green jets of fire shot out from under his feet, pushing him upwards so he could land on Appa's saddle.

"Nice bison." The stranger commented, his head was turned away from them and looking towards the ship that was looking farther and farther away as Appa flew up into the air.

"You...you're a firebender?!" Sokka blurted out in shock.

"And an airbender?" Katara added with a look that matched her brother's.

"But...but that's impossible." Aang whispered to himself.

"Fire attack incoming," The stranger said as he hopped off of the saddle and landed on Appa's lower back just as a large fire blast shot towards them. "baldy, give me your staff!" The stranger called, holding a hand out. Despite his shock at an air-bender who could also firebend, Aang reacted quickly and tossed the stranger his staff. The stranger took a deep breath before he waved it, sending an air blast which knocked the fire into a glacier, the damage from the blast caused bits of the glacier to fall down and damage Zuko's ship. "Wow, that was cool." The stranger breathed before he stepped back into the saddle and tossed the staff back to Aang before he sat down.

"Who are you?" Katara asked.

"My name's Harry." The stranger said as he closed his eyes and pulled his hood down, revealing a messy, raven black set of hair, he pulled off the black mask that covered the lower part of his face. Katara's eyes widened as she looked at the handsome boy in front of her, she damn near fainted when he opened his eyelids to reveal a brilliant pair of emerald green eyes.

"I...hold on a sec!" Sokka quickly said as he looked Harry up and down. "You...you can airbend...and...and firebend! But...but you're not the Avatar because Aang is! And...and your fire is green! The...there's only one person you could be...you...you're him...you're the 'Exception', the...you're the 'Emerald Dragon'!"