The Lady Taken: The Complete Series

Lady Killane is everything a woman in 1882 is not supposed to be. A wealthy widow of independent means, she takes lovers, frequents parties of the demimonde, and does exactly what pleases her. That is, until her carriage is overtaken by a highwayman who calls himself Wolf. 

Wolf takes Lady Killane for ransom, determined to hold her until her family pays him. But the longer she is captive, the more the two are drawn to each other. Soon, Lady Killane is torn between her desperate need to escape capture and her all-consuming desire for the mysterious highwayman who claims her soul the way no man ever has.