From the description:
"Set during a period of revolution and turmoil, Mistress of My Fate is the first book in a trilogy about Henrietta Lightfoot, a young woman who was abandoned as a baby and raised alongside her cousins, noble children of a lord and lady. At just sixteen years old, circumstance and a passionate love affair tear Henrietta away from everything she knows, leading to a new life fending for herself on the streets of 18th century London as a courtesan, gambler, and spirited intellect of the city."
This romance gets 4.2 stars off a scant 15 reviews, with one each 1 and 2 stars. Note that this is significantly more than the usual $0.99 for the daily romance, but it is considerably longer (435 pages).