A twelve-year-old street urchin and the son of Chicago's most important jeweler strike up an unlikely friendship in the days before the Great Chicago Fire of 1871, and both are nearly trapped when the city goes up in flames.

Oscar Starling never wanted to come to Chicago. But then Oscar finds himself not just in the heart of the big city but in the middle of a terrible fire! No one knows exactly how it began, but one thing is clear: Chicago is like a giant powder keg about to explode. An army of firemen is trying to help, but this fire is a ferocious beast that wants to devour everything in its path, including Oscar! Will Oscar survive one of the most famous and devastating...

Emmi, a German immigrant, is living in Chicago when the Great Fire breaks out on October 8, 1871, and, separated from her father, she finds herself with her neighbors, Cara and Seamus, braving the smoke and flames trying to escape the danger of the burning city, and searching for all their parents.