Some answers are found far beneath the surface… Sixteen-year-old Freesia Worth has a mystery to solve—the disappearance of her mother at their family lake house. Her traumatized sister Sage hasn't said a word ever since that day. After almost a year, Detective Barry Cuaco has found nothing but frustrating dead ends. Soon he'll have to let the case go. But Freesia isn’t making it easy for him. She needs answers. Now. With the help of her secret crush, Rick, and a mysterious Goth girl named Mizu, Freesia learns about an ancient Native legend and a man known as the Watcher of the Lake. Will Freesia finally uncover the truth? Or will the lake keep its secrets far beneath the dark water?