I can’t tell you much without spoiling it for you, but I can tell you that it is the perfect balance of mystery, character development, and lyrical prose.
Read the review above and then get this book. I've given it to a half-dozen people as a gift. They all say it's one of their most favorite reads of all time. That's a pretty good endorsement. And if that doesn't convince you, I received a text at 3:15 am in the not so distant past that said, "I just made myself stop reading with 70 pages to go just because I don't want it to end. I am in love. And ruined."
Get the book.