A SCIENTIFIC DETECTIVE STORY In Confrontations, the second volume of his Alien Contact Trilogy, Dr. Jacques Vallee personally investigates forty astonishing UFO cases from around the world. He finds it shocking that professional scientists have never seriously examined this material. This book is about the hopes, experiences, and the frustrations of a scientist who has gone into the field to investigate a bizarre, seductive, and often terrifying phenomenon reported by many witnesses as a contact with an alien form of intelligence.