"The Black Magician Trilogy" is a fantasy series written by Australian author Trudi Canavan. It consists of three novels: "The Magicians' Guild," "The Novice," and "The High Lord." The story follows a young girl named Sonea, who discovers her magical abilities in a world where magic is controlled by an elite group known as the Magicians' Guild. Set in the city of Imardin, the trilogy explores themes of power, prejudice, and self-discovery. As Sonea navigates her new life, she faces challenges from both the Guild and her own insecurities, ultimately leading to a confrontation that could change the balance of power in her world.