: While the group is inside, Appa is kidnapped by sandbenders, leaving the team stranded in the desert. Key Episode Facts Director : Giancarlo Volpe Writer : John O'Bryan Original Air Date : July 14, 2006 Core Theme : The danger of weaponizing knowledge. Notable Characters
: Sokka finds a partially destroyed room detailing "the Fire Nation's darkest day." With the help of a Knowledge Seeker (a fox spirit), he discovers that a solar eclipse will render firebenders powerless. [S2E10] The Library
: The Gaang manages to escape just before the building disappears, but Professor Zei chooses to stay behind to continue his research. : While the group is inside, Appa is