His to Ruin

Sasha: My father, the head of the Petrovic family, locked me up in a thirty-floor glass tower with one hell of a view. He tells me it's for my own good, it's to keep me safe from his enemies. What he's really done is clipped my wings and put me in a prison of his own making. Nikolai: I break. I take. I'm no one's prince and I exist to collect a debt long over due. Stealing my enemy's most treasured possession is all I've ever dreamt of.
But I can't break what's already been ruined. This broken princess has a way of getting under my skin and stirring life into a heart that's already dead. She's lethal but she's also about to find out that once I set my sights on something, I never back down.