There's some things that you wouldn't tackle in a children's book because it would be beyond, not the mental capabilities, but the experience of someone under the age of say ten or eleven to encompass. But that field is smaller than you might think. They can easily cope with death and things like that; they know about it and it's a subject that often preoccupies them.
Terry PratchettNanny's philosophy of life was to do what seemed like a good idea at the time, and do it as hard as possible. It had never let her down.
Terry PratchettWhen she spoke again it was in the thin, careful and above all brave voice of someone who has pulled themselves together despite overwhelming odds but might let go again at any moment.
Terry PratchettThe trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it.
Terry Pratchett