For this post, I want to look at this from a character's viewpoint. Your characters are not going to have an easy life where nothing ever troubles them, otherwise you have no story. Who would want to read about characters like that? So what a reader is after then is a situation your characters have to cope with. It can be a threat to life of course, but there are other ways of turning your character's life upside down, and it is how your people respond to that which will keep readers turning the pages to find out more.
How do your characters cope with the highs and lows of their life? What situations do they find easier to cope with and others nigh on impossible? (The latter incidentally could be something simple. They have no problems crossing a haunted forest to get to where they need to be but struggle with communicating with others, which could put them and the others in danger if taken to a logical conclusion).
What are your characters' emotional strengths and weaknesses? Do they learn from their mistakes immediately or do they need several "goes" to get something right? If their core trait is courage, what opportunities do they get to show that and does that trait ever fail them?
Answer questions like that and you should get some interesting story scenarios to write up!
Image Credit: As ever, the images are from the fantastic Pixabay.