It’s official: The Legend continues! Nickelodeon has picked up a second season of the animated adventure series The Legend of Korra, EW has learned. After averaging 3.8 million viewers for Season 1, Book 1, which concluded June 23, the Avatar: The Last Airbender sequel is receiving a second-season order of 26 episodes that presumably will be divided into two parts called Books 3 and 4, bringing the total number of episodes to 52.