A stranger with a stolen name. A secret worth dying for. And fifteen days on the open sea that will change everything.

Hinge Larsson has spent three years trading Boston drawing rooms for Egyptian excavation sites, and she wouldn't have it any other way. But when the chaos of Alexandria's crowded docks threatens to swallow her whole, it's a dark-eyed stranger who pulls her free ? his arm around her waist, his voice commanding the crowd to part ? and suddenly the adventure she thought she understood becomes something far more dangerous to her heart.

The man calls himself Senem Betum , but everything about him whispers of a deeper, hidden truth. He is learned, magnetic, and shadowed by a grief he refuses to name ? a man with assassins on his trail , a forbidden past , and a precious secret he can trust to only one person in the world. As their steamship cuts through the Mediterranean toward London, what begins as stolen starlit conversations and lingering glances becomes a bond neither of them can afford ? and a promise that will bind Hinge to his fate long after they part. When blood is spilled on the cobblestones of Marseille and the clock runs out, Senem places something priceless ? and perilous ? into her hands.

Some promises outlast the people who make them. Can Hinge carry the weight of a man's legacy, his country's future, and a love she was never supposed to keep ? before the forces hunting him reach her too?