The author of The Millionaire Rogue returns to her dazzling series about a bygone era filled with romance, espionage, and one dangerously seductive diamond… Mr. Henry Lake spent the past twelve years uncovering the most scandalous secrets of Europe’s wealthy and powerful, serving as one of His Majesty’s most decorated spies. But when a mission to find the legendary French Blue diamond brings him back to London, and face to face with a beautiful noblewoman he once loved, it’s his own hidden passions that are uncovered… Lady Caroline, dowager Duchess of Berry, knows better than to lose her head over a man. After an embarrassing romantic entanglement forced her into a loveless marriage and early widowhood, she learned to never trust in desire, especially when it comes to the man who once broke her heart. Only, despite her good sense, she finds Henry impossible to resist—even when he once again places her in deathly danger…