Charlotte Butterworth may only be on her first London season, but she already knows she will never marry.

1.) Nothing interests her as much as numbers, a fact others consider worthy of great disdain.
2.) Her mother ran off with the vicar, a position the ton respects only at church.
3.) Charlotte has received some dreadful, utterly shocking news.

The last point is the most serious. When the handsome, roguish Duke of Vernon gains possession of this information and seems inclined to share it, Charlotte needs to act quickly.