I'm revising a MG mystery right now. It involves a kidnapping, and I just realized that the last chapter is mostly the victim explaining how the crime happened. I think it's a bit too much, "and this is how it happened, Bob."
I've considered cutting the chapter entirely, which would end the book right after the climax with the victim being rescued, but no blow-by-blow explanation of how the person disappeared. (The protagonist has some guesses as to how it happened but doesn't know every detail.)
So, I'm wondering how all you mystery writers end your books. Do you leave some of the hows to the reader's imagination? Do you plant the information about how it happened before the climax? I'm wondering how much I need to explain, I guess, without boring the reader.
I'm also looking for good mystery endings to study...if you have any suggestions.