Investigative journalist Mariah Blake visits Gibson's Bookstore to present her new book, They Poisoned the World: Life and Death in the Age of Forever Chemicals, a landmark investigation of the chemical industry's decades-long campaign to hide the dangers of forever chemicals, told through the story of a small town on the frontlines of an epic public health crisis. Blake will be joined in conversation by author Keith O'Brien (Fly Girls; Paradise Falls: A Deadly Secret, a Cover-Up, and the Women Who Forged the Modern Environmental Movement)