Series
Chronicles of the Avatar ;
bk.4.
Kyoshi novels.
Avatar, the last airbender (Television program)
Summary
"Avatar Yangchen has succeeded in bringing a measure of stability to Bin-Er, but her successes have been limited to a single city, and rumors concerning Unanimity--a weapon capable of total obliteration--have led to increasing tensions among the Four Nations. Desperate to restore diplomacy, Yangchen... Full description
Series: Yangchen novels
The dawn of Yangchen (Volume 1.)
The legacy of Yangchen (Volume 2.)