The lives of a wayward teenager and a lonely archivist are unexpectedly joined through the discovery of an old diary. Thirteen-year-old Natalie Gallagher is trying to escape: from her parents' ugly divorce, and from the vicious cyber-bullying of her former best friend. She discovers a dusty old diary in her family's basement and is inspired to unlock its secrets. Kathleen Lynch, an archivist at the Massachusetts State Archives, and a widow estranged from her only daughter, has her own painful secrets. Natalie's research brings her to Kathleen, who in Natalie sees traces of the daughter she has lost. What could the life of an Irish immigrant domestic servant from the 1920s teach them both? In the pages of the diary, they will learn that their fears and frustrations are timeless.