A mermaid haunts Adrianne's dreams . . . but are its strange warnings for good or evil? When Adrianne comes face-to-face with the mermaid of Windwaithe Island, she is convinced that it means her and the Windwaithers harm. After all, the island is steeped in stories of mermaids' curses and ill-luck. But Adrianne is fierce-willed and courageous and is determined to protect her family and the islanders from danger. When her neighbours find out about Adrianne's encounters with the mermaid, she is more in peril than she could ever have imagined. They believe that, once active, the mermaid cannot be quieted until an islander is sacrificed to the sea.