Fisher began to investigate paranormal phenomena and made contact with his own spiritual guide, a spirit who claimed to be a Greek woman who was his lover during an earlier life. He received much information from his contact with the spirits and started to check whether it was true or not. At first, some seemed to be correct, but as he started to check more closely, some turned out to contradict what he had been told. This raised doubts in his mind. Information given by different mediums contradicted and he came to the conclusion that at best, the spirits were guessing and at worse, deliberately lying. He also came to the conclusion that some of the information that he was provided could not possibly have been collected by natural means, that is, the mediums were not frauds.
By consulting a friend, he came to the conclusion that the spirits were trying to gain total control of him.
The same year that the book was published in the United States, Fisher, experiencing personal problems and feeling tormented by the spirits that he claimed to have angered, committed suicide. Something that his publisher thought were quite incredible as Fisher was known as one who wrote against suicide in a previous book he had authored.