This book was a good book. You felt every struggle and every obstacle that the girls face. I also like the little mystery element thrown in surrounding their mother and people going after them.
I liked Callie and Del's relationship. I liked seeing Del grow protective of her and claim responsibility for her sister.
I thought villains we're okay, not too fleshed out though. And the book does leaves some holes open, but they might be answered in the next book? I'm not sure.
Anyway, I totally recommend this book for a causal read about sisterhood, heavy emotions, and family.