Calder and Lily never imagined falling in love would mean breaking apart. But ever since Lily started wearing a glass pendant that once belonged to Nadia, Calder's adoptive mother, she's been having vivid dreams of what life was like for the mermaid matriarch. In fact, she's been dreaming as if she were Nadia! And Nadia, it seems, made a promise before her death. A promise to reunite Calder's b...