Twenty-three years ago, Sam and Dean Winchester lost their mother to a mysterious demonic supernatural force. In the years after, their father then taught them about the paranormal evil that lives in the dark corners and on the back roads of America... and he taught them how to kill it.

When a truck full of illegal Mexican immigrants is found by the side of the road, the occupants slaughtered with violent and unnatural force, Sam and Dean are compelled to investigate. Guided by a tattooed, pistol-packing bandita on a motorcycle,Xochi Cazadora, the brothers are plunged into a terrifying world of Aztec gods and monsters. Soon their exploration lead them deep into the dark heart of Mexico City.

A brand-new Supernatural novel set amid the turmoil of season 6, that reveals a previously unseen adventure for the Winchester brothers, from the hit CW series!