Secret Admirer (Marriage by Obligation Book 1)

Lady Rachel, the sister of the very wealthy and highly esteemed Duke of Creighton, has entered her first Season with great anticipation. She loves wearing beautiful gowns. She loves talking to her friends. She loves going to balls and meeting gentlemen. This is going to be the most wonderful time of her life. When she starts receiving missives from a secret admirer, it turns out the Season is even better than she imagined. What lady, after all, can resist the appeal of a mysterious stranger expressing his deep and abiding love in her?
She sets out to enlist the help of an unlikely ally to find out who her secret admirer is. She knows it's not appropriate to be discussing such personal information with the butler, but he is the only one she trusts to not tell anyone. Little does she realize the very one she's confiding in is the very one she's looking for. And there's no way he's telling her the truth since her brother, and the rest of London, would never approve the match.