I like the realistic approach and the basic message that however you feel about your adoption is OK (a frequent theme of ours around here). The book ends on an encouraging note, reminding the child she's part of her adoptive family forever:
We will stay together, always, when you are happy, sad, and yes, even mad (no matter what you say or do or think or feel!). And, I promise this: you won't ever have to be alone with all those feelings. I am strong and will be here to comfort you and keep you safe, for always.
But I didn't really intend this as a book review! Mostly I wanted to share Zoe's reaction, which moved me and tickled me in equal measure. After the story, Zoe said quite seriously about the author, "She has a gift for healing, the way she explained adoption to kids." Wow!
When I asked Zoe what "a gift for healing" meant, and where she'd come up with that, she said they'd learned about it in Religion class -- along with the gift of wisdom, the gift of knowledge ("that means being smart!"), the gift of faith, and I can't remember what all else. And then she declared proudly, "I have ALL those gifts!"