A Step 3 Step into Reading leveled reader based on Nickelodeon's Avatar Aang: The Last Airbender, now streaming on Paramount+! Avatar Aang: The Last Airbender is now streaming on Paramount+! Based on this film, this Step 3 Step into Reading leveled reader is sure to thrill fans. Step 3 readers feature engaging characters in easy-to-follow plots about popular topics. For children who are ready to read on their own.