In the Order of Blackthorn, the Reaper rules. His word is law. His Serpents are deadly weapons. And every debt is paid in blood. But even the devil has a weakness. An obsession. A sin. Magdalene Santoro is his. She remembers no promise, only the man who arrives on her doorstep with a blood-red rose and a claim she refuses to accept. He expects obedience. She gives him defiancé. And in Blackthorn, defiancé always has a price.