2

We see Y/n, with Aang, Katara, Sokka, Appa and Momo in his trail, reaching the top of a hill. Despite traveling together, the water tribe siblings haven't been able to get much information from Y/n, as he would just ignore them. With him only responding a few times to Aang. Aang spreads his arms wide while the crew sees an entire pyramid-structured city of Omashu.

Aang: The Earth Kingdom city of Omashu! I used to always come here to visit my friend Bumi.

Sokka: Wait, hold on a minute. What are we going to do about Y/n? He's wearing fire nation clothing??

Aang: What about it?

Sokka: We can't get in with him!

Katara: Um, he has a good point Aang.

Aang: I'm sure we'll figure something out! Right Y/n?

Y/n: Hm… They have a point. Maybe I'll wait out here with Appa and Momo.

Katara: Hm, Yeah that's probably for the best, we won't have any clothes for you right now. 

Aang: We'll grab some for you when we come back then!

Y/n: Good idea, but maybe, we should get something to disguise you too. People might freak out if they see the Avatar? 

Aang: Well what am I supposed to do? Grow a mustache?

Y/n grows a sinister grin, as we suddenly see Aang covered in some of Appa's fur, giving him a fake mustache and hat. Aang suddenly gets into an old man position. Y/n watches as they walk towards the kingdom, as Y/n continues to lie on Appa's back.

Y/n: Hey Appa you wouldn't mind if I take a nap right?

Appa just lies down as well, earning a small chuckle from Y/n. Y/n closes his eyes, and let's himself drift to sleep…

----

An 11 year old Y/n is seen holding a small white flame in the palm of his hands. He was seen sitting in what looked like an old fire nation home. 

???: Y/n! Are you here?

Y/n looked up to see Aang at the door smiling and waving at Y/n. He raises an eyebrow, and extinguishes his flame before getting up.

Y/n: Aang? What are you doing here? I thought the monks said you weren't allowed to see me? You know… being the Dark Avatar?

Aang: So? They said the Dark Avatar is dangerous because of them being able to bring destruction. But! The Avatar could do the same thing! Plus, do you want to take over the world?

Y/n: Uh, no.

Aang: See, you're fine! 

Y/n giggles as Aang takes out a small bag out of his pocket, and hands it to Y/n. Y/n looked at the bag curiously, before opening the bag to see a small wooden toy. It was a dragon.

Y/n: Huh?

Aang: Monk Gyatso made this for you!

Y/n felt the texture of the wooden scales, and smiled.

Y/n: Well, tell him thank you… I'm not allowed to have many toys.

Aang: Really?

Y/n: Yes… my parents aren't allowed to buy me much… the firelord said they would make me weak.

Aang: He sounds mean!

Y/n: Yeah… he kinda is. 

The memory suddenly began to fade, as a new one took its place, just one month later, Y/n's eyes were seen glowing a dark purple, as he was standing at the edge of a volcano. The sound of his heart beating fills his ears, he turns to see a bunch of Fire Nation soldiers heading his way. Y/n slams his foot down, causing a spike of molten rock to block their path. However, a few used a large gust of flames to push them over the spike, as they continued to go after him. 

Y/n punches towards them as white flames burst out. The flames surrounded the men, their armor began to scorch and melt. Y/n's eyes began to tear as every man who went towards him met the same fate. 

From down at the village, a little girl is seen looking up at the volcano, to see a large blinding white light that then shifts into a purple and black sphere…. The lights suddenly vanished.

Back at the volcano, Y/n stood around ash that used to be soldiers. His eyes glowing, and staring at the lava below him. He jumped in, and began to wrap lava and rock around him, his body not feeling a single bit of heat… not a single burn… this was his place of slumber… until 95 years later.

—

Y/n suddenly awakens on Appa's back, he raises his palm and has flames burning bright. He stared at the source of the noise to see some trees shaking. Out of the tree line, Katara, Sokka, and Aang come out.

Y/n: You guys are back already?

Katara: Y/n? Have you been asleep this whole time?

Y/n looks at Appa and Momo, and shrugs.

Y/n: um… yup.

Aang: Have a good sleep?

Y/n doesn't reply as everyone gets onto Appa, the Dark Avatar looks at his fist as they take up to the air.