User blog comment:Senjumaru Shutara/The Mystery Approach/@comment-25037895-20150705033223

These are very good tips. This would absolutely fit in the Writer's Advice page IMO.

I've noticed some mystery stories are too ambiguous (this is a hugely common issue) whereas something happens that is meant to allow the reader to fill in the details themselves, but it actually could've been something that is totally random and not suspenseful, therefore killing the intensity. It's important that the mystery event is defined enough to be unnerving or at least interesting. You touched base on this, but feel free to add that if you would like. The other side of the coin (hinting too much on the mystery during the story), I think you covered that well.