From Appa to Azula, the city of Ba Sing Se holds something for everyone. But Aang, Katara, Sokka, and Toph are more than just tourists. Together they must stop Azula's treacherous takeover of the city or watch the Earth Kingdom fall to the Fire Nation. It all culminates in the best bending battle of the season! Chapters: - Appa's Lost Days - Lake Laogai - the Earth King - the Guru - the Crossroads of Destiny.