One of the main themes is wealth and class. The novel shows how money can corrupt and also how different social classes interact. For example, the character of John Harmon's inheritance is a central plot device that reveals the true nature of many characters.
Then there is Mr. Boffin. At first, he appears to be a simple - minded and kind - hearted man. However, as the plot unfolds, we see that there is more to him than meets the eye. His transformation and the secrets he holds make him a complex and engaging character.
If we consider 'our mutual friend' in a more character - centric way, it could be a person who has connections to multiple characters in a crime fiction. This mutual friend might hold secrets or be a link between the perpetrator and the victim. Their actions or knowledge can drive the plot forward as different characters interact with them or try to find out what they know. Also, the idea of a mutual friend can add an element of mystery. Who is this person that everyone seems to know? And what role do they play in the crime? It creates a sense of intrigue and makes the reader more interested in uncovering the truth.
Our mutual friend's love story could be a really interesting one. It might have started with a chance encounter. Perhaps they met at a coffee shop where they both reached for the last cinnamon roll. Their eyes met, and there was an instant spark. From there, they started to get to know each other, learning about each other's hobbies and dreams. They went on dates to the park, picnicking under the trees and sharing their life stories. As time passed, their love grew deeper and stronger, and they became an inseparable couple.
Since I don't know the details of the story, I can't say for sure. But usually, the first meeting, the first date, and the moment they realized they were in love could be key events.
One possible crime fiction related to 'our mutual friend' could be 'Our Mutual Friend' by Charles Dickens. Although it's not a typical modern crime fiction in the pure sense, it has elements of mystery and crime within its complex web of characters and plotlines.