On the cover of Esther Pasztory’s 1998 book we witness today’s most celebrated pre-conquest Maya sacrificer, Lady Xoc, performing the act for which she is most notable: the Maya noblewoman lets blood by threading a thorn-studded rope through her tongue. Shield Jaguar, her male consort and eighth-century lord of Yaxchilan, stands close by brandishing a torch that illuminates the sacrificial scene. In recent years the sculpted lintel with Lady Xoc and Shield Jaguar, Yaxchilan Lintel...