Laura Scott 
Identity Crisis [EPUB ebook] 

Gage Drummond's ex-fiancée is missing and in grave danger. Her identical twin sister is his only chance of finding her. But an accident has left Mallory Roth with amnesia. Still, Mallory is more than willing to help search for answers to secure Alyssa's safe return. But it soon becomes clear that Mallory isn't acting like herself. In fact, minute by minute, Mallory reminds Gage more and more of the woman he's desperate to find. And with one sister missing and another missing memories, it's obvious their enemies are playing for keeps. Can they discover the truth—before it's too late?