Azularium, book 1: Siege of the East (смешанная)

Despite feeling his life slowly fading, Fire Lord Azulon is still determined to win the war his father began and earn eternal glory for himself, his dynasty and nation.
Unsure whether he can live long enough to see the return of Sozin's Comet, he orders his son and heir Iroh to take the capital of the Earth Kingdom by any means necessary, something Iroh believes to be his destiny anyway. His rivalry with his brother Ozai, though once encouraged by him, has started to worry the aging monarch. In an effort to preempt a civil war and build an even stronger bloodline, he proclaims the marriage of Iroh's son Lu Ten to Ozai's daughter Azula.
Though her heart belongs to someone else her sense of duty is stronger, thus she faithfully follows her cousin on all his military quests. In the 18th year of her life she joins him and her uncle in their push to Ba Sing Se. Meanwhile her elder brother Zuko is building a career in the navy, growing more fearsome and respected by the day. Their father, though working in secret, is sure not to stand idle either. How will the drama of family and war unfold? Will the Avatar return to escalate things further?