A week after her forty-first birthday, Anne Boyer was diagnosed with highly aggressive triple-negative breast cancer. For a single mother living payslip to payslip who had always been the caregiver rather than the one needing care, the catastrophic condition was both a crisis and an initiation into new ideas about mortality and the gendered politics of illness. A harrowing memoir of survival, ‘The Undying’ explores the experience of illness as mediated by digital screens, weaving in ancient Roman dream diarists, cancer hoaxers and fetishists, cancer vloggers, corporate lies, John Donne, pro-pain ‘dolorists’, the ecological costs of chemotherapy, and the many little murders of capitalism.