You and Team Avatar went to a library that was buried in the middle of the desert. You, Toph, and Appa waited outside as the rest went into the library. Suddenly, the library started sinking. Toph immediately went to use her earthbending to stop it from sinking, but then some sandbenders came and took Appa. Soon, everyone came out safely. Aang saw that Appa was gone, and once he knew what happened, he looked at you and Toph with an angry expression.

"How could you let that happen!?"