The series is a family saga that spans generations, focusing on the lives, loves, and tribulations of the Cazalet family. Set primarily between the 1930s and 1950s, the narrative delves into the personal and societal impacts of events like World War II on the extended family. Through vivid characterizations and intricate relationships, the story explores themes of time, change, and the endurance of family bonds against the backdrop of a rapidly evolving England. Each book in the series captures a different era, reflecting the shifting dynamics within the family and the country at large.

The 6696th greatest book of all time