Few of us can resist the lure and fascination of a genuine mystery-the unsolved crime, the inexplicable disappearance, strange gifts and powers, the enigmas of past and present. Who was the real Jack the Ripper? Can people have out-of-body experiences? What is really behind hypnosis, miracle healing, acupuncture? This intriguing book examines some of the most celebrated and puzzling mysteries that have baffled the scientists, medical experts, historians and criminologists of the world.