In the swoon-worthy finale of her Love on Holiday series, Christy Carlyle takes readers to the breathtaking coast of Ireland where a pretty, young duchess's secretary agrees to impersonate her mistress to help a future duke appease his fortune-hunting family...until he falls for her, instead.Miss Aurelia Graves has never had a holiday. She is much too busy as the personal secretary to the Duchess of Waverly. But the Duke of Ballycannon Castle in Connemara, Ireland, has invited the duchess to visit?and as the duchess cannot travel, she has insisted Aurelia go in her stead.Except when Lia arrives, everyone mistakes her for the duchess?and it's clear the family who owns crumbling Ballycannon were hoping to match the widowed duchess with Alexander Fennessy, future Duke of Pierpont. But when Alex learns the truth of Lia's identity, he has an...unusual request. He'll happily show her hospitality if she'll agree to let others think she's the duchess for a fortnight, while also making it clear she has absolutely no interest in marrying him.There's just one problem: as time runs out on their arrangement and Alex increasingly fears he must in fact marry an heiress to save his family's fortunes, he finds that his heart now belongs to Miss Lia Graves...and he can't bring himself to let her go.