From “one of America’s most courageous young journalists” (NPR) comes a propulsive narrative history investigating the 50-year-old mystery behind a dramatic experiment that changed the course of modern medicine.

Susannah Cahalan is the award-winning, New York Times bestselling author of Brain on Fire: My Month of Madness, a memoir about her struggle with a rare autoimmune disease of the brain. She writes for the New York Post and her work has been featured in the New York Times, Scientific American Magazine, Glamour, Psychology Today, and other publications. She lives in Brooklyn.