From a New York Times bestselling author comes the gripping, untold history of science's darkest secrets, "a fascinating book [that] deserves a wide audience" (Publishers Weekly, starred review).Science is a force for good in the world—at least usually. But sometimes, when obsession gets the better of scientists, they twist a noble pursuit into something sinister. Under this spell, knowledge isn’t everything, it’s the only thing—no matter the cost. Bestselling author Sam Kean