A Noble Masquerade by Kristi Ann Hunter
My rating: 3 of 5 stars
Summary: Lady Miranda Hawthorne acts every inch the lady, but inside she longs to be bold and carefree. Entering her fourth Season and approaching spinsterhood in the eyes of society, she pours her innermost feelings out not in a diary but in letters to her brother's old school friend, a duke--with no intention of ever sending these private thoughts to a man she's heard stories about but never met. Meanwhile, she also finds herself intrigued by Marcus, her brother's new valet, and although she may wish to break free of the strictures that bind her, falling in love with a servant is more of a rebellion than she planned.