Elena Vasquez has learned not to trust happiness. Raised by her foster relatives who kept her fed and little else, she taught she'd finally found something real until her boyfriend Trevor and her best friend Natalie's long planned betrayal nearly destroyed her. She survived she has nothing left.Then a four year old boy runs into traffic, and instinct takes over. Elena throws herself between him and the car and finds herself starring into the eyes of Rafael Castellano, a man whom the world knows a billionaire dynasty head, and the underground knows as something far more dangerous.His son Matteo, a brilliant guarded prodigy, won't stop asking for her. Desperate and homeless, Elena takes the nanny position Rafeal never wanted to offer and steps into a household where every maid can disarm a man twice her size, where loyalty is a currency and Rafeal's trust in her is a door he refuses to open. But Elena doesn't know that Rafael is beginning to suspect the scar on her ribs isn't a coincidence. That a dying man named Vicenzo Castiglione has spent a fortune searching for a granddaughter he lost to distance, bad luck and stolen name and Rafeal was promised, long ago, to marry a girl he believed was dead.As an arranged alliance with Camilla Deluca closes in, as enemies from Elena's past resurface with new motives, and as Matteo's small, fierce loyalty pulls two guarded hearts together, Elena will have to decide whether to trust a man who has been watching her every move - before the truth catches up to both of them first.Some inheritance are written in blood.Some promises are kept in the dark.