What are some common poisons used in many mystery novels?

Arsenic is a very common one. It was often used in older mystery novels as it could be easily disguised and was a relatively accessible poison at one time. Another is cyanide. It's a fast - acting poison, which makes it quite dramatic for mystery plots.

Poisons are often used as a means of murder in mystery novels. The killer might slip it into the victim's drink or food without being noticed. For example, arsenic could be added to a cup of tea.

Poisons can create mystery. For example, when a character is poisoned and the source or type of poison is unknown, it sets up a puzzle for the detective to solve. This drives the investigation forward.

I don't think so. Even the most sophisticated poisons leave some traces that experts can eventually uncover with the right tools and knowledge.

The ticking clock is also a frequently used plot device. When the narrator is in peril, there's often a sense of time running out. Maybe they have to solve the mystery before they are framed for a crime or before a bomb goes off. This time pressure intensifies the peril and keeps the reader on the edge of their seat. It forces the narrator to make hasty decisions and take risks, which further endangers them.

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One common trope is the 'locked room mystery'. It presents a situation where a crime, usually a murder, occurs in a sealed or seemingly inaccessible space, like a locked room. Another is the 'unreliable narrator'. This character may be lying, misremembering, or have a distorted view of events, which adds to the mystery. And the 'red herring' is also popular. It's a false clue that misleads the detective and the readers, making the plot more twisty.

One common trope is the 'locked room mystery'. This is where a crime, usually a murder, occurs in a seemingly impossible location, like a sealed room. Another is the 'red herring'. It's a false clue that misleads the detective and the readers. And the 'unreliable narrator' is also popular. The narrator may have motives to lie or misinterpret events, adding to the mystery.

Well, 'forensic evidence' can be a term in mystery novels. This includes things like fingerprints, DNA evidence, etc. that are used to solve the mystery. 'Motive' is also crucial. It's the reason why a suspect might have committed the crime. And 'crime scene' is where the mystery begins. It's the place where the crime took place and where many of the clues can be found.

One common theme is the search for a killer. In many mystery novels, a detective or an amateur sleuth is on a quest to find out who committed a murder. Another theme is the mystery of a disappearance. It could be a person vanishing without a trace, and the story revolves around uncovering what happened to them. Also, the theme of a secret society often appears. There are hidden groups with their own rules and motives that are part of the mystery.