A very credible and disturbing story

This story is not credible.
Generally young children love their parents unconditionally. They are of no judgment and do not keep records on who does what, even if one parent works more than the other and therefore are often absent. The judgment of a 9 year old boy on his mother, comforted by her grandmother is very disturbing.
Moreover the language of the boy does not match his age. Children often poetic words and charming as could say a 5 year old child. And judgments and explanations of depression as those of an adult who come from a small girl he invents imaginary.

I had high expectations of this novel given rave reviews. Big disappointment because three small poetry notes are not enough to make a good book