So I think of Romance as comforting and I think of Fox as a romance writer and then I forget that Fox does not write comforting romances.
Which I should have remembered from the death count in the last book of hers that I'd read. 
And yet. Which isn't to say it wasn't good. Just not...comforting. There was a lot of both the army and academia being awful (which, fair) and one of the most nuanced looks at a relationship between an older and younger man that both explores why this dynamic works so well and also some of the pitfalls.
This book also does NOT pull any punches in its depiction of death by suicide and while there are aspects of the depiction that were imperfect (much of which is complicated by the exigencies of the plot), the one thing it does super well is communicate how devastating it is.
I was disappointed at the absence of priests who don't believe in god in this one, though the number of saints and angels evoked does rather help.
I have complicated feelings about this book, but also I read the audiobook in a day so there's that.