I started the book out insanely jealous of Trina and her father. Just LOOK at that house! I love fixing things up, and you are looking at my dream home right there.
While Trina's father is of the same mind, Trina herself is not. That isn't too surprising, and fits well into this particular theme. There is a bit of thinking you want one thing, and finding another thing is better. Forming an impression of someone that changes as you get to know them. Stretching out of your comfort zone, remembering to think of others, deciding what kind of person you want to be seen as...all the traditional tropes of the coming of age novel, with the addition of a little mystery and fantasy.
The familiar topics make the plot 'twists' somewhat easy to predict, and a healthy suspension of disbelief is required - especially at the end. Upper elementary, wistful girls will devour it, however, and will want to see more by this author. As O'Reilly's debut novel, there is definite promise.
Passage of note:
"There was nothing wrong in letting Augustine believe whatever she needed to believe to make her happy."
Ironic because Trina later becomes angry with her father for doing the same thing, and a great question for discussion!