Avatar Book 3 Fire Episode 8 - The Puppetmaster Episode Title:The Puppetmaster.Episode Description:The gang discovers that there have been strange disappearances in a Fire Nation town during a full moon. They befriend an elderly innkeeper named Hama, who reveals that she is a waterbender from the Southern Water Tribe that had been taken away sixty years previously alongside her fellow Southern waterbenders. She becomes Katara's mentor and shares with her the tragic story of her life as a longtime prisoner of the Fire Nation. Katara then discovers that Hama is enacting her revenge by kidnapping Fire Nation civilians with bloodbending, a sinister and dark technique of waterbending which can only be used by an incredibly strong and skilled waterbender, and only during a full moon when his or her waterbending abilities are at their strongest potential. The resulting battle forces Katara to use the technique against Hama to save Aang and Sokka. After being arrested by the village, Hama congratulates Katara on mastering bloodbending. A horrified and saddened Katara cries and Aang and Sokka comfort her.