Having conducted research through five decades and across four continents, investigator Brad Steiger concludes that a richly populated Shadow World exists all around us. When it impinges on our ordinary plane of shared reality, this dark dimension is sometimes frightening, occasionally menacing, but always worthy of cautious exploration.
Spirits of the dead are but one of the many types of beings that inhabit the Shadow World. Others appear to be multidimensional beings, some of whom may be benign, while others seem to be cosmic tricksters or troublemakers bent on mischief. And unfortunately some of the beings that seem to have our best interests at heart may in fact have entered our world with the intention of possessing our bodies or capturing our souls.

Brad Steiger wrote about the paranormal for more than four decades, during which he produced more than 160 books on the subject. He regards this work, which was certainly ahead of its time, as one of his best books on the paranormal. He is also the author of Strange Guests, Shadow World, Beyond Shadow World, Mysteries of Time and Space, and Worlds Before Our Own.