Secrets of a Duke’s Daughter by Samantha Holt

A duke’s daughter must be prepared for whatever life—and love—throws her way…

Lady Cassandra Fallon is finally ready to take control of her life and join her late mother’s investigative society. She’s more than confident she can do the job—even when her first case involves a potentially deadly scandal. What she’s not quite prepared for is her brother’s attractive (and increasingly distracting) friend acting as her self-appointed bodyguard…

When Lord Luke promised his best friend he’d keep an eye on Cassie, he meant it. But the brazen and entirely too alluring woman she’s become is a far cry from the mischievous, freckled girl she used to be. Luke knows a lowly viscount has no business longing for (or touching) a duke’s daughter. But against all reason…he does…

She craves independence. He only craves her. An epic battle of the sexes is at hand. But will love be enough to get them to happily ever after? Cassie and Luke will soon find out…