Episode 30 - "The Library" (210)

[Kiara]

A professor tells the gang about a Spirit Library full of information, hidden in the desert. Sokka decides to find the desert library in hopes of finding secrets and weaknesses about the Fire Nation. When the group gets to the library, they find that much of the information on the Fire Nation has been destroyed, but they still find crucial information about firebenders that could possibly end the war.

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[zuko614]

If I were the professor, I would have left when the building was sinking.