In 1908, eleven-year-old Innie joins the library club at a settlement house that serves immigrant familiesof Boston's North End, but when items and money disappear from the settlement house, Innie's past as a troublemaker puts her under suspicion.
Sixteen-year-old Laura, an American living in London, tries to find the person responsible for the death of her younger brother Billy, who has been killed by a terrorist bomb.