This is the story of a boy whose mother is sick, and the monster that comes to call.
It is a sad book, and a true one (in that it speaks a truth, not the truth; I think it is smart enough to realize that the topic it is addressing is not one it can fully dress down in words). I have not decided if it is a kind or a cruel book; if it is kind, it is a terrible sort of kindness.
I wrote, once, seven-months-and-change ago, about how there is a dearth of narratives for accepting that you have finished grieving. This is not about that, but it speaks to the shunning--of aspects, of truth, of a person entire--that arises in response to apparently terminal illness, and I think the topics are related.
It strikes me as very worth reading, and I recommend picking it up most strongly.