Sarah-Jane: An American Historical Romance (The Brittler Sisters #4)
Josephine Blake

When Carson Williamson stumbles across a fiery-tempered woman in the ruins of his great great grandfather's mansion, he never once suspects that she would be the same well-bred, high-class lady he has arranged to meet the following week. Under the distinct impression that Sarah-Jane is hiding a myriad of insane emotions from her family, he sets about attempting to force her to show her true self to the world, and thereby have her committed.
But Sarah-Jane isn't about to have that. She's not insane. And now she has to prove it to Carson before he does something drastic.