One Night with a Duke (The Duke #5)
Sandra Masters

Samantha, a young widow with a secret, irreverent and high-spirited, has constructed impenetrable walls against all men. When she and Raven meet again, strong wills clash. Political intrigues and a dreaded nemesis place his life at risk, and Samantha finds herself in a dire predicament. All the while, passion soars.
Can Samantha’s barriers fall with more kisses? Can Raven be released from his deathbed vow?