In this day of the revival of "Spiritism," when so many, through the loss of loved ones in the "Great World War," are longing to communicate with the dead, and are resorting to forbidden means to that end; a day in which science is trying to discover whether there is another world than this, and whether men live after death, and if so can they communicate with the living, it seems timely that a book should be written to show what the Holy Scriptures have revealed of the "World of Spirits." The Bible has much to say about the "Spirit World," and if we will carefully search its pages we shall know all there is to be known in this life of the "World to Come." For if men will not listen to Moses and the Prophets, they will not be persuaded though one rose or came back from the dead. Luke 16:31. - Foreword.