A Pacific Coast mystery involving a lost fortune, an island in Puget Sound and the descendants of an old Yankee trader. Sixteen-year-old Chloe Catesby comes from boarding school to Catesby Island where her great-grandfather had built a home, but she discovers instead of a mansion, a worn little cottage, in which lives Aunt Persia who stitches aprons for a livelihood, her son Duncan and twelve-year-old daughter Ellen who takes care of neighborhood children. Next door is another cottage where Great-aunt India broods about the lost glory of the family. A violent search by someone else who is looking for the ""lost treasure"" of the old Captain, a diary, and a surprise accident solve the mystery. Well developed mystery with salty characterizations.