"Queen of Air and Darkness" is a fantasy novel by Cassandra Clare, part of the The Dark Artifices series. It follows the story of Emma Carstairs and her friends as they navigate the complexities of love, loyalty, and betrayal in a world filled with magical creatures and dark forces. The novel explores themes of identity and the consequences of choices made in the face of danger. Set in the Shadowhunter universe, the book delves into the political tensions between the Shadowhunters and the Fae. As Emma and her companions confront powerful enemies, they must also grapple with their own emotions and relationships, making difficult decisions that will impact their lives and the fate of their world.