I'm not sure who the main characters are as I haven't read the novel. Maybe it has a detective as a main character if it's a mystery - type story.
Not having read the 'Heat of the Night' novel, we can only speculate about the main characters. It could have a strong - willed individual as the main character, perhaps someone who is new to a place and gets caught up in the events that occur during the night. There might be a local figure who has a lot of influence and whose actions are central to the story. And then there could be other characters who are connected to these two in different ways, like a witness or a love interest, all of which would contribute to the development of the plot during the heat of the night.
Well, there's also Sam Wood. He is a police officer in the town. At first, he is somewhat influenced by the racial attitudes of the town but as the story progresses, he also has to deal with the changing dynamics brought about by Tibbs' presence and the investigation they are all part of.
I don't know as I haven't read the book, but it could be ordinary people living in the area affected by the big heat, like a local shopkeeper, a young student, or a hard - working laborer.
One important character is Virgil Tibbs. He brings a different perspective to the town as a black man in a position of authority in the detective work. The other characters include the suspects he has to deal with. Each suspect has their own story and motives, and through his interactions with them, we see more of the complex social fabric of the town.
The themes include identity. The black detective has to constantly assert his identity and worth in a world that tries to marginalize him. Also, there's the theme of community. The novel shows how the actions of individuals can affect the whole community, both positively and negatively.
The characters are interesting because of the racial tensions they represent. For example, Virgil Tibbs being a black man in a predominantly white and racially charged small town in the South. His interactions with the white characters, especially Bill Gillespie, create a lot of drama and conflict.
I'm not sure specifically as I haven't read this novel. But generally, it might be about events that occur during a night of extreme heat, perhaps involving how characters cope with the heat, any mysteries or dramas that unfold in such a sweltering night.
Since we don't know what 'heat a novel' is really about, it's impossible to say who the main characters are. They could be anyone from scientists studying heat in a fictional world, to people living in a very hot region, or characters involved in a 'heated' relationship or conflict.
Well, I think a significant theme is the power of perception. People in the town initially perceive Tibbs in a certain way because of his race. But as the story unfolds, their perception changes. Also, the theme of perseverance is strong. Tibbs doesn't let the hostile environment stop him from doing his job and getting to the bottom of the mystery.
Without having read the book, it's impossible to say for sure. But it might have a protagonist who is in search of both heat (maybe in the form of a burning ambition) and light (like the truth). There could also be supporting characters who either help or hinder this search.
In a 'heat wave novel', the main characters might include an elderly person who has memories of past heat waves and can offer wisdom on how to deal with the current one. There could also be a young activist who is determined to raise awareness about the causes and effects of heat waves and is leading a community - based effort to adapt. And perhaps a government official who is struggling to allocate resources to deal with the heat wave - related problems.