Solving crimes and coming to the rescue of the poor is unheard of for a society woman in Philadelphia in 1842. But single, twenty-six-year-old heiress Martha Beale is against violence and tyranny of any kind—whether she’s helping an abused wife, taking a stand against child labor, or bringing a murderer to justice. With the help of mayor’s assistant Thomas Kelman, with whom she is romantically involved, the heiress and part-time sleuth is on a mission to ease the plight of the poor and root out evil in the City of Brotherly Love.