Cornwall, England, 1818. Julia Twethewey knows Matthew Blake, copper mine owner and very eligible bachelor, is the gentleman she should set her eyes upon. But why can't she steal her gaze away from his younger brother, Isaac? The brothers have approached the master of Lanwyn Manor with plans to bolster the floundering local industry. When valuables go missing, Julia and Isaac are pulled together in a swirl of strange circumstances, but despite their best efforts to bow to social expectations, their hearts aren't so keen to surrender.