In 1939, London held the title of the largest city globally, a fact highlighted in Christopher Fowler's book "Full Dark House." This period marked a significant time in history, with London being a hub of culture, politics, and commerce. The city's massive population and its bustling atmosphere contributed to its reputation, making it a focal point for many events and developments during that era.

Fowler’s work captures the essence of this city, portraying how its vastness influenced the lives and stories of its residents. "Full Dark House" delves into the intricate interactions among people in such a sprawling metropolis, emphasizing the complexities and narratives that arise from urban life. London's prominence in 1939 serves as a backdrop for exploring themes of mystery and human connection.