Fourth volume from the first series of the popular American animated series made in the style of original Japanese anime. In this instalment, Aang, Katara and Sokka are confronted with sickness, captivity and the testing of their friendship as they labour on with their journey to the Northern Water Tribe. Along the way they encounter a master Firebender, and Aang tries firebending for the first time - with disastrous results. Episodes are: The Blue Spirit', 'The Fortuneteller', 'Bato of the Water Tribe' and 'The Deserter'.