So excited to have found this on the New shelf at the library!!! I have been waiting to read this since it came out, and it was worth the wait. I love this series, it's amazing. Briggs is such a great author, and does her research. This one is a little different from the others in that the wolves take kind of a backseat, and Mercy's heritage is front and center. I love the Native American lore, and the introduction and interaction of the Animal Spirits. We find out more about why Mercy is the way she is, and her willingness to help people without being complaining or whiny about it is awesome. She accepts her role, and does her best. She is a relief from so many other female leads who get mad at stupid things, and complain too much. She is a character of action, not talk, and it's a welcome change from other authors. They go up against a foe in this one who is ancient and terrifying, and since it's in the water, Adam can't be of too much help, so it's really up to Mercy and her Native American friends and their magic. If you have read the rest of the series, you will of course, love this book. If you haven't read this series, DO IT! One of my all time favorites. :D