Miss Tiffany Has A Secret by Bronwen Evans

Miss Tiffany Deveraux is more than just a bluestocking, she’s a financial genius hiding behind the plain façade of an orphaned ward. Society sees a penniless, unremarkable girl under the Earl of Marlowe’s care, and Tiffany intends to keep it that way. Her quiet fortune, earned through sharp wit and savvy investments, is a secret she’ll protect at all costs. Because the only way to know if a man truly loves her… is if he believes she has nothing to offer but her heart.
Slade Ware, Marquess of Wolfarth, has the Midas touch, or so the ton believes. Lauded as a brilliant investor, his success is largely luck, and that luck may have just run out. When he learns of Tiffany’s hidden talents and growing wealth, a marriage of convenience seems the ideal solution. She gains protection. He gains stability. Simple. Logical. Unemotional.
But emotions have never followed logic.