Well, in most crime fictions, there is often a protagonist who is either directly involved in the crime related to the moonstone or is on a quest to uncover the truth about it. There may also be antagonists, perhaps those who want to keep the secrets of the moonstone or those who have committed crimes regarding it hidden. There could be side characters too, like friends or family of the main characters who might either help or hinder the investigation into the moonstone mystery.
One of the main themes is probably mystery. Since it's a crime fiction, the mystery of the moonstone's disappearance or its connection to crimes would be central. Another could be greed, as often in crime stories, the object in question (the moonstone) might be desired for its value, leading characters to commit immoral acts.
Given that we don't have any specific details about the 'Moonstone Novel', the main characters could range from a solitary explorer seeking the moonstone's secrets to a family whose lives are intertwined with the power or mystery of the moonstone. It could also feature a magician or sorcerer who has a special connection to the moonstone and uses it for good or evil purposes.
One of the main characters is Rachel Verinder. She is associated with the moonstone in a significant way.
In a 'the magic moonstone novel', there could be a young adventurer as the main character. Maybe there's also an old wizard or wise woman who guides the protagonist in understanding the magic of the moonstone. And of course, there might be villains who are after the moonstone for evil purposes.
I don't know the specific main characters in 'moonstone graphic novel' as there's not enough information provided.
There could also be a victim - turned - avenger type of character in 'serpico crime fiction'. Maybe someone who was wronged by the criminals and then decides to take matters into their own hands, and this character's journey becomes a central part of the story.
One of the main characters is C. Auguste Dupin. He is a brilliant detective who uses his extraordinary intellect to solve complex crimes. For instance, in 'The Murders in the Rue Morgue', he is able to piece together the strange details of the murders.
One common theme is the allure of the moonstone itself. It's often a valuable and mysterious object that drives the characters' actions, like greed or the search for power.
I don't know as I haven't read this fan fiction. It could be the winners themselves who are the main characters. They might be individuals from different backgrounds who have achieved victory in some way but are involved in criminal behavior.
I'm not sure specifically as there could be many different versions of 'the night fire crime fiction'. But usually, there would be a detective or an investigator as a main character who is smart and determined to solve the crime.