In tiny, packed hallways, shoppers crowded around small vendors. Each vendor sold a variation on a similar theme: witchcraft. Santa Muerte glowered down from every surface, that wonderfully evocative patroness of the lost and downtrodden. Since I booked my flight to Mexico, I have been deeply intrigued by this heretical icon. She is revered by many people in Mexico, but the Catholic Church has condemned her worship. She’s skeletal and terrifying and considerably menacing to some. Legend says she will appear in your dreams, answer your prayers with the right gifts, and bring death to your enemies. She’s charming. Santa Muerte is not a truly Catholic image, obviously, instead she is the perpetuation of ancient Aztec religious belief.