A history-making volcanic eruption is about to destroy the Big Island of Hawaii. But a secret held for decades by the military is more terrifying than the volcano.

"Shane works with her mother and their ghost dogs, tracking down missing persons even when their families can't afford to pay. Their own family was displaced from their traditional home years ago following a devastating flood and the loss of Shane's father and her grandparents. They don't think they'll ever get their home back. Then Shane's mother and a local boy go missing, after a strange interaction with a fairy ring. Shane, her brother, her friends,...

A cryptic message forces eighteen-year-old American Edda to investigate what secrets followed her across the ocean, even as she tries to make sense of her time as a telephone operator on the French front lines of World War I.