Deep Blue Secret is the first book in the water keepers series, and I believe that the second book is already out as well so people that don't like waiting between books, never fear! You can continue right on with the series. I liked Deep Blue Secret. It was a different kind of paranormal for me. While there is a bad guy "villain" in this story, the premise still seemed somehow lighter than most other paranormals that I have read. And I liked that. The water keepers are all about healing and helping. While we don't learn a ton about the specifics of them in this first installment, we do get to know the characters in the story pretty well. 
 Sadie is a unique girl. She has a strange birthmark that changes colors, and then this new guy shows up out of no where. That's when her life starts to really get interesting. I loved seeing Rayne and Sadie together. Rayne was just so sweet. He was always there for Sadie, always looking out for her and protecting her. There is a bit of a twist when it comes to why that is, and even though I managed to guess what it was, I still really like it and I think it is going to be interesting in the books to come. And Sadie herself is a nice, good girl. It is so nice to see someone so nice and normal. I love my jaded heroines with trust issues galore sometimes, but it is also nice to once in a while see a happy, well adjusted teenage with a great mom who is just living her life. I think that's why I felt like this book was a little lighter than most other paranormal's I have been reading lately. 
 My favorite part of the story was the developing romance between Sadie and Rayne, and getting a glimpse into Rayne's world. I loved learning about the farm that his family has. The only thing I thought Deep Blue Secret was missing was a little bit more back story on the water keepers themselves. I feel like I still have so many more questions about what is going on with them and with Voss, but I think that will all be explained in the next book. Overall, Deep Blue Secret set up an interesting plot that I am intrigued enough with to want to continue on with the story. I love Sadie and Rayne and I can't wait to see if a real romance will blossom between the two of them. I really hope so!