Mystery at Cape Cod, The.
- Peachtree City, GA : Carole Marsh/Gallopade International, 2013.
- 158
- America's National Mystery Book Series .
Christina, Grant, Mimi, and Papa visit the peaceful Cape Cod National Seashore, only to find themselves awash in a mystery filled with troubling tire tracks, shifting sand dunes, and warnings of a approaching Nor'easter!