While at a desert oasis, the group meets , an anthropologist from Ba Sing Se obsessed with finding the legendary Wan Shi Tong's Library . Upon finding the buried structure, they encounter its guardian, a massive owl spirit named Wan Shi Tong , who allows them entry only if they contribute new knowledge.
: A scholar whose remains are later seen in the sequel series, The Legend of Korra , implying he never left the library. [S2E10] The Library
In Season 2, Episode 10 of , titled " The Library ," Team Avatar travels to the Si Wong Desert in search of a hidden archive that holds the key to defeating the Fire Nation. Plot Summary While at a desert oasis, the group meets
: Angered by humans using his library for war, Wan Shi Tong decides to sink the library into the Spirit World, trapping everyone inside. In Season 2, Episode 10 of , titled
: Fox spirits that serve as the library’s librarians.