What makes up a mystery?

Answer/Explanation: Plot, Characters, Setting, Solution, Problem

Here is a mnemonic to remember these 5 things:

Polly Could Sew Silk Pajamas.

The Plot, Setting, Characters, Problem, Solution

These are the five elements that make up a mystery.

The Plot is the point of the story.

The setting is time and place a story takes place.

The characters are people/beings in a story.

A problem is the issue in a story.

The solution is the thing that resolves the problem.

they died because of a disease during the first spanish colonies.