Any opinions would be appreciated: Imagine a child X witnessing something bad like child A deliberately pushing child B, so child B gets knocked by an opening door and passes out, then dies later out of sight of the children. What I'm saying here is that the thing that needs to stick in their memory is the fact that it was a _deliberate, vindictive act_, not the imagery of the consequences - there are no blood and guts etc. All child X witnesses is child B getting a pushed and then bonked on the head, no blood. Then they find out later (the same day) that the other child died. I'm looking for an age to pick for child X that is young, but not so young that they are able to just discount the incident and move on. I have a 9 year old and a 10 year old (in real life). I'm pretty sure in this situation I could convince my 9 year old that they had been mistaken in what they thought they had seen (if I was a bad person in a novel). My ten year old on the other hand, seems so much more mature and self-assured that no matter how hard I worked, I think they would always know in their heart of hearts what they saw. I need what happened to stick with the characters throughout their lives. I was going to pick 10ish as the age of the children, but if anyone has any other thoughts that would be cool. ps. Seeing this in writing at all sounds a bit morbid, even when I know it's just for a story.