**While this is shelved as JF (middle grade) at my local library, parents should be aware there is some language, as well as the more obvious mature topics.
So, I saw a comment on a review for this on GoodReads that basically said "dying 12-year-olds don't use good judgement".
That about sums this one up.
I really struggled with the beginning. I wasn't buying that Mark was only 12. He came across as 15ish, at least to me.
And while that got better, I could just never really suspend disbelief far enough.
In some ways it's a touching story, and I'm not bothered that Boo read it. I'm sure she got different things out of it as a 6th-grader than I did as an adult and a parent.
But while things did get better and I was more or less invested by the end and there were elements of "this is such a touching story".... meh.
Overall it just didn't work so well for me.