The Duke’s Predicament by Fenella J. Miller

The Duke’s Predicament is the third and final book in The Reluctant Duke series.

Lady Sarah and Paul marry as planned but the garden party to celebrate their nuptials is ruined by an unpleasant incident. The duke is faced with a predicament and it’s not one he can share with his beloved wife, Amanda.
Patrick O’Riley decides to appeal to Lord Wellington himself in the hope that he won’t be arrested as a deserter. Miss Hannah Westley decides to follow Patrick to Portugal but when he chooses his career over their happiness she returns to England. Doctor Peterson also has an interest in Hannah. He hopes to persuade her that she will be happier with him than with Patrick.
Hannah has a decision to make but will she make the right one?