Quadrologies

A quadrology is a series of four related works, typically in literature, film, or other media. Unlike a trilogy, which concludes with a third installment, a quadrology extends the narrative or thematic exploration into a fourth part. These series can encompass novels, films, plays, or even video games, and they often follow a unified storyline or explore a common set of characters and themes across the four installments. The term itself is derived from the Latin prefix "quad-" meaning four, and "-logy" meaning discourse or story.

The creation of a quadrology can arise from various creative decisions. Sometimes, a story naturally requires more than three parts to fully develop its plot or characters. Other times, the success of a trilogy might inspire creators to continue the narrative, adding a fourth installment to further explore the established universe or introduce new conflicts. Quadrologies allow for a more expansive development of plot arcs and character growth compared to shorter series, potentially offering a deeper and more complex viewing or reading experience. However, maintaining narrative coherence and audience engagement across four installments can be a challenge. Examples of quadrologies exist across different media, though they are less common than trilogies or longer series.