The Stepsister and the Slipper by Nina Clare

What if the prince fell in love with the stepsister?

Lady Charlotte needs a rich husband, and fast. Good thing she has plenty of beauty and charm, with no foolish ideas of love to get in the way of her plans. When the chance to catch the wealthiest, most eligible bachelor in the kingdom appears, she will do everything in her power to win such a prize; even if she must break a few hearts along the way. But in the end, it is her own heart that’s troubled. Perhaps true love really does exist, but if so, it’s not with the man she has caught…