One of the world's leading geologists, British Lord Phineas Stuart, has gone missing in this classic whodunit, book 4 in series. In the aftermath of one of the deadliest earthquakes and biggest tsunami waves ever recorded, the world's scientists have flocked to Port Stirling, Oregon to study the effects on the land and sea. When the investigation into Stuart's disappearance gets underway, Matt and his colleagues quickly realize they are not hurting for suspects who wish the geologist harm. Has Stuart just taken off somewhere, or is a jealous competitor responsible for the missing scientist? Will this mystery drive a wedge in Matt and Fern's new relationship, and are they caught in the crosshairs? Is Lord Stuart's disappearance just the tip of the iceberg? How far will people go to protect what they love when the stakes are high?