Who are the main characters in the 'War of Secrets Novel'?

In the Warhammer 40k War of Secrets novel, it's possible that there are main characters from different factions. There might be a tech - priest from the Adeptus Mechanicus who is trying to unlock some technological secrets. Or perhaps a Commissar who is involved in uncovering some political secrets within the Imperium. There could also be a Chaos cultist whose actions drive part of the story as the Imperium tries to root them out.

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.

I'm not sure specifically as I haven't read the 'Temple Secrets Novel' in detail. But usually in such novels, there could be an adventurous protagonist, perhaps an archaeologist or a treasure hunter.

I don't know as I haven't read it.