I could not get into this book and finally gave up. The whole book did not seem real to me.
I didn't care enough to find out whether "mom" is mentally ill, or just an alcoholic. The sibling squabbles seemed contrived. Copper is 12--the one night her current caretaker decides to leave her home alone, something happens to bring the police into it. One of her uncles just happens to be running for state senate. I did not get far enough go meet "weird Aunt Maggie" (who it seems is a witch).
(No spoilers intended--most of what I gave away is from the first 2 pages anyway.)
From the back of the book:
On her Own:
Copper Jones is used to taking care of herself. Her mom has her own problems to worry about, and Copper's stepfather is always busy with his job. But things have gotten worse lately, and Copper must go stay with relatives...who don't really want her.
After getting kicked out by both an aunt and uncle, there's only one person left for Copper to stay with: weird Aunt Maggie. Copper is sure she won't last long there--until she discovers that Aunt Maggie's a lot nicer than anyone ever realized.
Now that Copper's found someone who cares about her, all she has to do is stay out of trouble. Because if she blows it this time...there's no place else for her to go.