I have an idea that might work well as a story for preteens to early teens since the protagonist would be around that age. However, the basic premise leads to it being a bit of a horror story. My main question is how scary is too scary for that age range? Obviously truly graphic gore is out, but I find it hard to figure out what the right balance would be to be scary, not terrifying or boring. Maybe there are some horror/scary books targeted to that age range that I could read for examples? The protagonist would probably be male. I can give basics of the idea if it helps with answers.