Daughter of Fortune series by Isabel Allende
An orphan raised in Valparaiso, Chile, by a Victorian spinster and her rigid brother, vivacious young Eliza Sommers follows her lover to California during the Gold Rush of 1849. Entering a rough-and-tumble world of new arrivals driven mad by gold fever, Eliza moves in a society of single men and prostitutes with the help of her good friend and savior, the Chinese doctor Tao Chi'en. California opens the door to a new life of freedom and independence to the young Chilean, and her search for her elusive lover gradually turns into another kind of journey. By the time she finally hears news of him, Eliza must decide who her true love really is.