She swears vengeance and flees the mansion with her friend Rangi, a teenage firebender serving as Yun's bodyguard. The resultant trauma causes Kyoshi to go into the mighty Avatar State and nearly kill Jianzhu. Jianzhu, Yun, and Kyoshi seek the counsel of a spirit who confirms Kyoshi is the true Avatar, then attacks Yun Jianzhu abandons Yun to die and murders Kelsang when he confronts him.

Yun's identity as the mighty Avatar is thrown into question after Kyoshi performs a feat of Avatar-level earthbending during a confrontation with pirates. Nine years later, young Kyoshi works as a servant in a mansion built to accommodate Yun, an Earth Kingdom teenager who Jianzhu has identified as the Avatar, and who is one of Kyoshi's friends. She is later taken in by Kelsang, who becomes a father figure to her. Kyoshi, then a homeless outcast child left in the village by her outlaw parents, briefly participates in their test, but runs off midway through it, unused to displays of kindness. They come to Yokoya village, to try and find the Avatar among the children there. Seven years after the death of 33-year-old Avatar Kuruk of the Northern Water Tribe, his companions Jianzhu and Kelsang, a powerful Earth Kingdom sage and an Air Nomad, respectively, search the Earth Kingdom for the next Avatar. The second book in the series, titled The Shadow of Kyoshi, was released on July 21, 2020. Set in the world of the animated television series Avatar: The Last Airbender, it takes place 400 years prior to the series and follows the life of Kyoshi, an Avatar born in the Earth Kingdom, two generations before Avatar Aang, and three before Avatar Korra. It is based on the character Kyoshi and the Avatar franchise created by Michael Dante DiMartino and Bryan Konietzko. Yee and Avatar co-creator Michael Dante DiMartino in the Chronicles of the Avatar novel series, published in July 2019.

Avatar: The Last Airbender – The Rise of Kyoshi is an American fantasy novel and the first young adult novel written by American authors F.C.

The rise of kyoshi books