A genre of literature that involves magical and supernatural elements in a self-contained or series-based narrative, often set in imaginary worlds. This category can also encompass action fantasy books, which are characterized by fast-paced plots, adventurous heroes, and intricate, dramatic conflicts. The term 'action' within this category typically refers to the exciting, physically demanding events or sequences taking place within these books. This category is inclusive of all literary works that fall under these definitions.