Tidal

b' About the Book: Tidal\n\nGemma is facing the fight of her life. Cursed by beautiful but deadly sirens,\nher extraordinary powers have a terrifyingly dark side, and becoming human once\nmore is proving her greatest challenge yet. As she struggles to break the curse,\nthe sirens, Penn Lexi and Thea are determined to kill her before she can set\nherself free. Gemmas only allies are her sister, Harper, and Harpers boyfriend,\nDaniel. Together they must delve into their enemies mythical pasts - to discover\ntheir darkest secrets. But Penn has also set her sights on Daniel. Soon, the\nsirens threaten everything Gemma holds dear: her family, her '