I review some key principles of the murder mystery. One: the suspect who hogs all the attention in the first third of the book fizzles like a damp firecracker right after they disclose some crucial piece of information, which, the observant reader can see, was the purpose of that character all along. Two: the closer someone was to the victim, the likelier it is that person killed them. In the world of the murder mystery, your best chances of survival are to eschew all meaningful human relationships. Husbands and wives. Parents and children. Brothers and sisters.

