There's no way to review this without spoilering you in all kinds of ways. So I'm not going to say much.

This is the best third book in a series I have ever read (what a weird sentence, but the truth). It was nothing what I thought it would be, but in a good way. The plot developed in ways I had never expected, almost everything that happened was a surprise to me (good surprises, and bad surprises).

Just know that Maureen did the first two books justice, she did more than that. Readers won't be disappointed.