An Offer From a Gentleman (Bridgerton #3) - Julia Quinn

Sophie Beckett never dreamed she’d be able to sneak into Lady Bridgerton’s famed masquerade ball - or that Prince Charming would be waiting there for her! Though the daughter of an earl, Sophie has been relegated to the role of servant by her disdainful stepmother. But now, spinning in the strong arms of the debonair and devastatingly handsome Benedict Bridgerton, she feels like royalty. Alas, she knows all enchantments must end when the clock strikes midnight.