While helping her sisters clean up a building that their parents are renovating, an aftershock of a recent earthquake dislodges a decades-old letter written to Baby V — and fourteen-year-old Violet is certain that somehow it has been written to her. As more and more mysterious writings from the past tumble into Violet s hands, she and her sisters begin to delve into historical documents and newspaper articles from the 1900s — including the accounts of the 1906 San Francisco earthquake — in an attempt to unravel the mystery. But as the present earthquakes increase in frequency, the girls realize that their time is running out. . . .