The series consists of fifteen books: the first eight comprise the "Deltora Quest" series, the next three comprise the "Deltora Shadowlands" series (also known as "Deltora Quest 2", "Deltora II" or "Deltora 2") and the final four comprise the "Dragons of Deltora" series (also known as "Deltora Quest 3", "Deltora III" or "Deltora 3"). There are also six other official bonus books to the series: "The Deltora Book of Monsters", "Tales of Deltora", "The Authorised Ultimate Deltora Quiz Book", "How to Draw Deltora Monsters", "How to Draw Deltora Dragons and Other Creatures", and "Secrets of Deltora". An anime adaptation of the series aired on Japanese television from 6 January 2007 to 29 March 2008. An anime adaptation also aired in Australia for a short time. A Nintendo DS game for "Deltora Quest" has also been made in Japan. In an interview as part of the 2011 Australian Council of the Arts "Get Reading!" Program Emily Rodda announced that she had sold the movie rights of the Deltora Quest series to a "prominent Hollywood production company."