These novels usually feature detailed descriptions of the past. They might describe the fashion, the architecture, and the way of life in the time period they are set in. In a 'There was a time novel', the characters are also shaped by the era. Their beliefs, dreams, and actions are influenced by the social and cultural context of that time. For instance, if it's a novel set in the Victorian era, the characters' ideas about marriage and family would be very different from modern times. The story might also show how the passage of time changes the characters and their relationships.
A 'There was a time novel' often has a certain charm about it. It can transport the reader to a different time and place. It might use language that is appropriate for the era it's set in. The plot may be centered around events that were significant during that time, like a big social movement or a technological innovation. For example, if it's set during the Industrial Revolution, the story could be about how the new factories affected the lives of the working class, and how families were torn apart or brought together during that period of great change. It also might explore how the memories of that time stay with the characters and shape their future lives.
Typically, a 'There was a time novel' may have a strong sense of nostalgia. It often looks back at a particular period in history. For example, it could be set during the World War II era. The story might focus on how people's lives were different then, with different social norms and values.