The war against the darkness escalates! As the Divisi n del Norte battles on, Pancho Villa and his unlikely allies the fierce soldadera Petra Herrera, cynical German expat El Alem n, and mystical alchemist Sabia face an ever-growing horde of eldritch horrors in the streets of Monclova. But when a new mechanical nightmare, the unstoppable El Charro Muerto, is unleashed by Villas enemies, the team is forced to make an impossible choice: stay and fight for the Revolution or pursue the greater cosmic evil threatening all of M xico.