Nobody’s Rogue by Brenna Ash

His life was monotonous, until a thief stole his heart. Things aren’t always what they seem when opposites collide.

Malcolm Kennedy, Earl of Cassilis, spent his time during the war watching the enemy’s every move, but he never envisioned his reconnaissance skills would come into play at a friend’s house party . When he catches the famed phantom prowler red-handed with her hands deep inside a chest of jewels, he has no choice but to apprehend her, despite her objections.
Miss Annabel ‘Lizzie’ Barclay had finally tracked down the jewels that were stolen from her family months ago. She’d been chasing the thief and waiting for the right time to make her move and the party was the perfect setting. Until the handsome Scot with a voice like smooth whisky catches her in the act of retrieving the gems, thwarting her attempt.