A USA Today bestselling series... She can't remember her past. He has the key to unlock her memories. Can he protect her from the shadows threatening to destroy everything? Olivia Adler is a woman with a troubled past. For the past decade, she has remained unattached to anyone, men included... Until Alexander Burnham walks into her life one night and changes everything. But he has demons of his own, ones that could turn her world upside-down. Will Olivia allow Alexander close enough to protect her from a force threatening her very existence? Or will she push him away and guard her heart instead?