My Favorite Duke - The Duke Hunters Club, #2

Lady Juliet is happy. Very happy. After all, she's engaged, even if she rarely sees her betrothed.  So what if her betrothed keeps postponing their wedding? Or that there are wicked rumors about him? Still, when the Duke of Sherwood doesn't appear at a ball as intended, there's only one thing she can do: discover the truth herself. Lucas, the Duke of Ainsworth, is exceedingly dull. At least, that's what he desires everyone to believe.
He makes certain to enter into conversations with the ton about obscure plants and to quote Latin tomes while fiddling with his spectacles. By night, Lucas is involved in a different task: bringing down criminals. No criminal is as elusive as the person spreading counterfeit coin through the Lake District, and Lucas is determined to discover the source. When he sees someone sneak onto the man's estate in the Lake District, he expects to discover one of the man's accomplices.
Instead, he is shocked to discover Lady Juliet. Lucas vows to help her, no matter how distracting her alluring presence is.