Marked for Vengeance by Anna Blakely

A missing friend. A sister she never knew existed. An unexpected love…and a truth that may destroy them all.

What starts as a joke between friends leads Scarlett Hathaway to Rose, a sister she’s never known, only to discover her half-sibling is missing. Desperate to find her, Scarlett turns to the tall, dark, and deadly felon who claims to know Rose better than anyone. Oliver “Olly” Garcia is the most infuriating—and tempting—man Scarlett has ever met. He’s also her best chance at finding her sister before it’s too late.
After a months-long search for his missing friend results in nothing but countless dead ends, Olly’s hope of finding Rose is fading. When he receives a call from a woman claiming to be Rose’s long-lost sister, his instincts tell him Scarlett may be the key to uncovering the truth behind what happened. But if he’s not careful, the sexy redhead with a killer smile may also hold the key to unlocking his carefully guarded heart.
As these two strangers embark on a journey to find a woman they both care about, they find themselves forced to go undercover…as lovers. The lines between pretend and real get blurred, and Olly and Scarlett soon discover what they feel for one another is anything but fake. When the search for Rose goes sideways, and Scarlett’s life hangs in the balance, how far will Olly go to save the woman he loves?