Crossover fiction refers to literary works that blend elements from different genres or appeal to multiple audiences. This can include combining aspects of fantasy and science fiction, or merging young adult themes with adult storytelling. The goal is to create a narrative that resonates with readers from various backgrounds and interests. An example of crossover fiction is the Harry Potter series, which attracts both children and adults with its rich world-building and complex themes. Such works often challenge traditional genre boundaries, allowing for greater creativity and broader readership.