The Fairy Tale Bride

Miranda Fenster gave up on a happily-ever-after following a disastrous
London season, but she is determined to help her brother regain his
star-crossed love by convincing the impeccably proper Duke of Kerstone
he was wrong to thwart their love match. Instead, she finds herself
compromised, married, and with a second chance for a fairy tale ending
-- if only she can show the duke fairy tales do come true.