When My Brother Was an Aztec is a work of courage and invention—one that foregrounds the particularities of family dynamics and individual passion against the backdrop of western mythologies and a deeply rooted cultural history. Natalie Diaz’s arresting debut explores a brother’s addiction and its devastating effects on a household, while offering a political critique of our nations and their pasts. It acknowledges absences and uncomfortable silences, as well as conjuring vivid voices and presences, from Antigone and Houdini to Huitzilopochtli and Jesus.