Books like Whispers in the Graveyard

I was very disappointed after finishing this book, and I don't know on what grounds it won the Carnegie Medal.In short, it deals with too many plots and genres at the same time, not taking any of them seriously.It starts as a realistic novel, describing the desolate situation of a boy trying to cope with severe dyslexia. But the author adds too many problems. His mom has left, his dad is an unreliable alcoholic, his teacher an unbelievably one-dimensional bully. Out of the blue a new young teacher appears, sees the problem and sets out to set it straight. This alone would be a problematically shallow approach to serious childhood issues, but now a real ghost story is added. And it is not a story taking place in the boy's head to help him cope with his life (as A Monster Calls successfully does), no, it is a real, graveyard-situated ghost story with ancient treasures, curses, illnesses and sudden deaths, it is something that all characters experience together, grown-ups and children alike. No convincing reason is given why this ghost story is included in the plot to make the main character confident enough to tackle his problems. The different stories just happen. There is a curse, children are threatened, but they survive. So what? Solomon decides to work on his dyslexia. Wow, big surprise. His dad might start going to alcoholics meetings. Ok. The wondrous teacher leaves because she is so good (after a week or two), that she gets a promotion. The little child that is saved in the graveyard doesn't fill any function at all after that episode. Why is she there in the first place then?No recommendation if you want a story that makes sense on an emotional and structural level.