My guest on this week's Book Club podcast is the investigative and tech writer James Ball, to talk about his new book The Other Pandemic: How QAnon Contaminated the World. In it, James traces the rise and disturbing metastasis of what he calls 'the conspiracy theory that ate all the other conspiracy theories', and argues that what looks from the outside as an extreme set of fringe beliefs about Satanic paedophile rings running the Deep State is something we need to take very seriously indeed.