Youโd better tell me what you know, toad,โ said Tiffany. โMiss Tick isnโt here. I am.โ โAnother world is colliding with this one,โ said the toad. โThere. Happy now? Thatโs what Miss Tick thinks. But itโs happening faster than she expected. All the monsters are coming back.โ โWhy?โ โThereโs no one to stop them.โ There was silence for a moment. โThereโs me,โ said Tiffany.
Terry PratchettThere'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 Pratchett