Gemma and Harper Fisher are facing the fight of their lives. Gemma has been cursed with extraordinary powers that have a terrifying dark side, but she's finally found what she needs - a way to break the curse and become human again. However, finding the means to do it will be her greatest challenge yet. And now Penn, Lexi, and Thea - the gorgeous but deadly creatures who cursed her - are determined to kill her before she has a chance. Making matters worse, Penn has her sights set on Daniel - the guy Harper loves - and Penn always gets what she wants.
As Gemma and Harper race to break the curse before it's too late, they're thrust deeper into a mythical world of immortal secrets. They must into their enemies' past to find the answers they need, even if it means being drawn deeper into their savagely beautiful world. But one of the girls is not what she seems...and Gemma finds an unlikely ally as she struggles to save herself. Will it be enough to break an ancient curse that no one has ever escaped from alive?
Tidal continues the story of the Watersong Quartet. I really loved this book, just like I loved the previous books in the series. The character relationships continue to develop and grow, and the siren mythology is expanded on as well. I'm excited to read Elegy, the final book in the series.
SPOILERS FOR WAKE AND LULLABY
In this book, Gemma and Harper are still trying to figure out how to break the siren curse in a way that doesn't end in Gemma's death. Harper's library coworker, Marcy, has a friend who knows about mythology. They go meet her, and she tells them about the scroll. The scroll contains all the information about the curse, possibly including how to break it. Gemma knows she must find this scroll, and the sirens probably have it with them. Searching for the scroll is an important part of this book.
Harper and Daniel are officially a couple by the beginning of this book. They are so cute together. I liked their dates that they went on. Unfortunately for Daniel, Penn has an obsession with him. She wants to be with him. She is also fascinated because he can resist the siren song. In this book, we do find out why he is immune to their song. Daniel makes a deal with Penn. I won't say what the deal is, but it will interesting to see whether or not he follows through with the deal in the next book.
Alex is dealing with the repercussions of what Gemma did to him at the end of Lullaby. She used her siren song on him to convince him that he didn't love her, but she didn't know how much that would mess him up. Alex no longer really cares about anything, and it feels like he is missing a part of him. He starts drinking and getting in fights. He wakes up every morning hating Gemma, but part of him knows that he is actually supposed to love her. Gemma realizes that she must find a way to undo what she did to him.
If you like YA paranormal, read this book.