In these engrossing case studies, the #1 New York Times bestselling author of The Hot Zone reports back from some of the most exotic, frightening, and exhilarating frontiers of science “Darkly fascinating . . . sure to please science fanatics, or anyone else obsessed with nature’s murkier mysteries.”— Newsweek Panic in Level 4 is a grand tour through the eerie and unforgettable universe of Richard Preston, filled with incredible characters and mysteries that refuse to leave one’s mind. Here are dramatic true stories from this acclaimed and award-winning author, including • the phenomenon of “self-cannibals,” who suffer from a rare genetic condition caused by one wrong letter in their DNA that forces them to compulsively chew their own flesh—and why everyone may have a touch of this disease • the search for the unknown host of Ebola virus, an organism hidden somewhere in African rain forests, where the disease finds its way into the human species, causing outbreaks of unparalleled horror • the brilliant Russian brothers—“one mathematician divided between two bodies” —who built a supercomputer in their apartment from mail-order parts in an attempt to find hidden order in the number pi In exhilarating detail, Preston portrays the frightening forces and constructive discoveries that are currently roiling and reordering our world, once again proving himself a master of the nonfiction narrative.