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.
Perhaps the main character in 'Murder by the Book' is a writer. Writers are full of imagination and could be involved in the mystery either as a potential victim or as someone who has unknowingly created a plot that someone is using as a blueprint for the murders. Another main character could be a bookseller who notices strange behavior among their customers and becomes an important part of the investigation.
I don't know for sure as I haven't read it. But it could have a detective as a main character, who is trying to solve the murder.
Since I haven't read it, I can't say for sure. But they could be new characters introduced specifically for the side story, or they might be secondary characters from the main 'book of murder' story who get more focus here.
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.
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.