In 1765, as plague sweeps through Zacatecas, Alba Díaz flees with her wealthy merchant family and her betrothed, Carlos, to the safety of his family's remote silver mine. But something ancient and malevolent stirs deep in the mine's tunnels—a foreign evil carried over by the conquistadors and bound in stone—and it fixes its hunger on Alba, who begins to suffer hallucinations, sleepwalking, and violent fits. Her only possible ally is Elías, Carlos's brooding alchemist cousin: the one man she has every reason to distrust. A lush colonial-Mexican gothic of possession, greed, and autonomy, from the author of The Hacienda.