I'm not sure as I haven't read the novel, but typically in a novel about a hall and its secrets, there could be an inquisitive protagonist, perhaps a young person who has a connection to the hall. There might also be an older character, like a caretaker or an elderly relative who has some knowledge about the secrets.
One of the main themes could be mystery. Given the title, there are likely secrets to be uncovered within Roscarbury Hall. Another might be family, as the hall could be a family estate with family - related secrets. Also, perhaps a theme of discovery as the characters may be on a journey to discover these secrets.
Since it's about the secrets of Nanreath Hall, there could be the owner of the hall as an important character. He or she might be a figure full of mystery, with a past that is gradually revealed as the story progresses. And there could be a local character, someone who has lived near the hall all their life and has some inside knowledge about the place and its secrets.
Well, without having read the book precisely, it's likely that secrets themselves are a major theme. Since it's set in Nanreath Hall, perhaps there are secrets related to the place, like its history or the people who have lived there in the past. And as it's a novel, themes of character growth and development are also quite common. The characters might be going through various challenges that force them to change and grow throughout the story.
I haven't had the chance to read 'Public Secrets a Novel' so I can't name the main characters. However, in many novels, main characters can include protagonists who are trying to uncover the public secrets, antagonists who are trying to keep the secrets buried, and perhaps some supporting characters who are either aware of the secrets or are unknowingly affected by them. These characters would interact in ways that develop the story and the concept of the public secrets.
I'm not sure exactly as I haven't read it. But typically in a novel about a house of secrets, there would be a curious protagonist, maybe a young person who is new to the house or has just inherited it and starts to explore its secrets.
Since the title implies a focus on kinship, it's likely that there are siblings among the main characters. They could be involved in uncovering or hiding family secrets. There might also be an older family member, perhaps a grandparent, who has knowledge of the secrets and whose actions or inactions influence the younger characters.
I don't know for sure since I haven't read it. But usually in a novel, the main characters could be those directly involved with the seven secrets, either as seekers or keepers of the secrets.
I don't know as I haven't read the book. It could be the owner of the chateau, perhaps a young explorer who stumbles upon the chateau and starts to unearth the secrets, or a family who has lived in the chateau for generations.
I don't know for sure as I haven't read the book. But it might have ranchers as main characters, given Wyoming's ranching background.
I'm not sure as I haven't read the book specifically. But typically in a novel about the secrets of flight, there could be an inventor or scientist type of character who is obsessed with understanding flight.