A Spinster for the Wicked Duke by Daphne Byrne

She had no desire to chase…But the Duke wanted to be caught…
Lady Thalia knows she has no place in the echelons of high-society, as her father’s funds are running dangerously low. But when a chance is presented to spend three weeks in the summer house of the Dowager Duchess of Hereford, she doesn’t realize her life is about to change forever.

Spending his summer mingling with his mother’s guests is not on Duke Colin’s list of fun activities. But suddenly everyone gets sick, except for the intriguing vixen that has been on his mind since he first saw her…
And Colin will not let her get away, no matter the scandal.