Cousin Kate, by Georgette Heyer
This is one of Heyer's famed Regency novels, and it's one I enjoyed. Kate is, of course, a poor and independent orphan of gentle birth. She is trying to earn her living as a governess, but her old nurse writes off to an estranged aunt, who sweeps Kate off to a country manor for a reluctant life of luxury. But the aunt has a sinister plan...
The Machine's Child, by Kage Baker
Another installment in the Company series, which is still going strong.