There may be a witness character, who might be a child or a servant in the family. Their perspective would be very important as they might have seen something relevant to the murder. And of course, there would be other family members who are affected by the murder, such as the victim's spouse or children, and their reactions and actions would be part of the story.
I'm not sure specifically as I haven't read this exact novel. But usually, there would be the victim, who is a family member. There would also be the suspected murderer, probably another family member like a jealous sibling or a greedy relative.
I don't know as I haven't read the novel. It could be a detective who is trying to solve the murder.
Since I'm not familiar with this novel, it's hard to say. But it could have a villain with a so - called 'talent for murder' as a main character, and perhaps a journalist or an ordinary person who gets dragged into the mystery and becomes a central figure in the story.
I don't know as I haven't read the book. But typically, there would be a detective or someone in charge of solving the murder. There might also be the victim, of course, and perhaps the suspect or suspects.
I don't know since I haven't read it. But usually, in a murder - related novel, there might be a detective - like character who tries to solve the mystery.
In 'Murder by the Book', there might be a journalist as one of the main characters. Journalists are often good at digging up information, and in this case, they could be trying to break the story of the murder. There could also be a librarian who has some inside knowledge about the events leading up to the murder, perhaps because of the books that were borrowed or the people who frequented the library.
I don't know as I haven't read it. Maybe it has a detective as one of the main characters.
Aoba is one of the main characters. He has a unique personality and plays a crucial role in the story. Another important character is Clear, who has an interesting backstory and relationship with Aoba.
I don't know for sure as I haven't read it. Maybe there's a detective or an investigator trying to solve the murder.
The main character is Hercule Poirot, the brilliant detective. And there are the various passengers on the Orient Express, like Ratchett, who is the murder victim.
Since we don't have much information about this novel, it could have a main character who is a journalist investigating the 'white angel' murders. There might also be a police officer in charge of the case as one of the main characters. And perhaps there is a mysterious figure who is somehow linked to the white angel, either as a suspect or someone with crucial information.