This story has an evil ending. Don't read it if you can't take sad endings. Oneshot Kataang.

Disclaimer: I do not own Avatar: the Last Airbender

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Alright, what happened so far is, Aang is 16, Katara 18. Zuko 20. Sokka 19. Aang had just admitted his feelings for her one night, and she loves him back. Zuko overhears the conversation somehow. He is now Fire Lord. Ozai is dead. Zuko killed his father to gain control over the fire nation. (I personally don't like Zuko. Gotta stick with him sometimes though.)

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You know I'll always be at your side, no matter what happens.

I know Aang.

Then you'll have to understand that we can no longer travel together.

What? Why not?

I am afraid of losing you. If we part, then you won't get harmed. I will look for you after I have defeated Fire Lord Zuko. You know that our love will be everlasting and that I will always be in your heart, no matter how far apart we are.

Just like the singing nomads four years ago.

Just like the singing nomads.

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Aang thought back this conversation. He was in the Fire Lord's chamber. Zuko was sitting on the throne. Aang had mastered all four elements, and was preparing his attack.

So, Avatar. Come to defeat me, is that correct.

Bring it on, Zuko. You'll always be a disgraceful banished prince deep inside. You can't hide that.

Shut up. And if you knew the stakes that you are risking, I woudn't talk like that.

What stakes?

Your little girlfriend. I can kill her, she is my prisoner.

Let her go!

Tell you what, I'll be nice. She is at the topmost chamber. Second door. Fifth Cell. Reach her before I do, and she'll live. If me or my guards reach her before you do, she'll be burned inside out.

Don't!

Time is ticking, Avatar. Or do you not care about her at all, wasting time like this. Every second she could die. Guards are on their way already. I suggest you go now.

Shut up!

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Up in the topmost tower

I believe in you, Aang. I know our love will be everlasting. Nothing will keep us apart from each other. Not even death. I believe in you.

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30 minutes later, topmost tower

It seems that I have reached here a second before you did Avatar. Too bad your little girlfriend won't see the light of day ever again.

No, it's not true, I don't believe it, it's all a dream!

Oh, you're not dreaming, Avatar. This is real. I will kill her right in front of you. Then you can waste time sucking in the truth of your miserable failure.

Aang…

Katara! Don't worry, I'll get you out!

Don't forget, our love is binded forever. I'll never leave you, even after I die, as you'll never leave me. We'll be in each other's hearts. Forever. Because unlike Zuko, we know what love is like. We know…that love is the greatest source of power. We have the power of love.

Katara…don't say that. Don't say that!

Aang, you'll always be in my heart. I'll always be here to guide you through troubled times, even if I'm at a place that is unreachable for bare flesh. Heaven.

No, Katara, no…I won't let him kill you, I just won't!

Just remember, Aang…Love is the greatest source of power.

IT IS OVER, AVATAR!

No…Katara…Katara, no...KATARAAAAA!