Who was John Dee—the Tudor polymath who advised Elizabeth I, mapped the heavens, spoke (he believed) with angels, and penned a landmark preface to Euclid? Historian and writer Rachel Morris joins to unpack Dee’s strange, brilliant world at the fault line between Renaissance “natural magic” and the birth of modern science. We explore why astrology was respectable, what “as above, so below” meant to learned magi, how printing turned libraries into engines of ideas, the hazards of practicing magic