What A Lady Needs (The Redgraves, Book 2) by Kasey Michaels
Lady Katherine Redgrave has a mission - to find family journals which may hold the key to a traitorous conspiracy and put Kate's family in danger. Kate vows to let no obstacle stand in her way...but when she meets Simon Ravenbill, Marquis of Singleton, her attention is diverted as the sinfully handsome nobleman tempts her beyond reason.
Simon has a mission of his own and he needs to get to the Redgrave journals before Kate does. The solution is simple - he'll romance the fiery beauty in hopes of distracting her from her quest, while covertly searching for the diaries himself. Yet what begins as a charade soon becomes an all-consuming desire...