Don't Mind if I Duke - Wayward Dukes' Alliance, #4

Reginald Shaw never expected to inherit a title at all, much less become a duke. Now he has a title, scads of responsibilities, unexpected new family relations, and one very opinionated widow on his hands. It's little wonder he escapes into the brotherhood of the Wayward Dukes. Dorothea Sumner was a marchioness. She was a woman of consequence, with a bright future as a duchess. Was. Now she is simply a widow with a daughter to care for and no prospects.
She isn't sure if the new His Grace is a godsend. or straight from the devil.