He was given a special assignment. He didn't count on falling for her.

Colonel Richard Fitzwilliam, a hopeful romantic, cannot afford to marry for love. When he is offered a new assignment with the promise of a promotion, he eagerly accepts— only to find himself immersed in a world of intrigue and lies.

Adélaïde Mauvier is a successful dressmaker on the verge of attaining everything she thought she wanted. When she is thrown into Colonel Fitzwilliam’s company, she begins to think there might be more to life than her ambitions.

As the colonel gets closer to the truth, he finds out that people are not always what you believe them to be. Will he fall in love while catching a traitor? Or worse … will he fall in love with a spy?

Colonel Fitzwilliam's Challenge is a clean, sweet Regency romance and the third/final book in Jennifer Joy’s trilogy, The Darcy Cousins.