It would have to be: Make sure that you have clearly explained what happened, how it happened, and why.
Answer:
where the passage??????????????
Answer:
So as I understood the question it asks you to write a draft of the letter thinking that you are the narrator.
Explanation:
-you can point out that something is clearly wrong( you can add your own ideas since you are the narrator*<em> the writer of the draft</em>*)
-You can add your own ideas ( like you found something very terrifying for example like Maggie's brother is not dead)