In a country burdened by history, politics, and secrets, detective Ana López faces a chain of murders that mix Nahua symbols, governmental conspiracies, and rituals forgotten by time. "The Thirteen Heavens" is a police novel that crosses the threshold between the present and the myths of the past, where every death seems to be written by the gods... ... and only someone who understands the language of the blood will be able to stop what is coming.