There are really 2 comics, though they come in different parts. 'The Promise' shows how the team founded the United Republic of Nations, and 'The Search' shows the team (Along with Azula) looking for Zuko's mum.
Both The Legend of Aang AND The Legend of Korra are awesome! I don't understand so much hate towards the new show. Either that or the movie.
I prefer 'Spirits' over 'Air'. Why? Bloodbending. Book 1 of Korra had bloodbending, I'm sure we all remember that. I also like Book 2 because of who appears in the Spirit World. Not gonna spoil it for those who haven't seen it.
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