For Sophie Greene, being employed as personal assistant to Ethan Blackwood, the elusive and glaringly intimidating billionaire, was supposed to be the start of a stable career. But he is nothing but a cold, business-like exterior hiding the soul of a man-a man burdened with his secrets, guilt, and a past he would rather keep to himself. An outside-the-office incident pushes them to work closely with each other, and Sophie will find out that Ethan has a sensitive, passionate side that is very difficult to resist. As their professional bounds blur and indefinable chemistry catches fire, Sophie stands torn with growing feelings and knowledge that bearing the burden of loving Ethan could perhaps ruin her career—and worse, her heart. But Ethan did not get where he is as one of the most powerful men on earth by being weak. Enemies close in, and the demons of the past threaten to tear him and Sophie apart. It is time for Ethan to make the decision: let Sophie in or lose her forever. Can two people, from entirely different worlds, really find a love worth everything?