The Redemption of a Rogue - The Dark Regency Series, #2

Lord Michael Sutherland, Viscount Ellersleigh, is infamous amongst the ton for his powers of seduction and his prowess as a lover. Running from his own ennui and a lover who fancies herself his future wife, Michael retreats to the country and a crumbling, haunted castle won in a game of chance... a castle occupied by an innocent and oh so tempting young woman, Miss Abbigail Barrows. But country life proves to be anything but quiet.
At a debauched house party, Michael finds himself confronted with an unfortunate quandary, marry Abbigail, an innocent, or hang for murder. Residing at Blagdon Hall, Michael's faced with the dilemmas of seducing his new wife, who seems to be impervious to his charm, and unraveling the mystery of Blagdon Hall's resident ghost and the nefarious goings on at the neighboring estate.