For Paul, magic and ghosts exist only in fantasy stories, and he thinks Suzanna and Cloe are just hallucinations, that he's losing his mind. He doesn't realize that he's spontaneously using powerful sorcery to bring them back, and that when Suzanna's ghost cooks for him, he's actually conjuring real food for his table. But his ignorant and unknowing exercise of unprotected sorceries and wizardry has drawn the attention of the denizens of Faerie, and some powerful mortal wizards. And since Paul exhibits certain unusual abilities, they think he is either himself a demon, or at least demon possessed, so they want him dead. There's also a Secundus caste demon from the Netherworld that's crossed over to the Mortal Plane and has been feeding on human souls for centuries. It merely wants to possess Paul's soul. So everyone wants Paul dead, or possessed, and the poor, dumb fool just doesn't realize what's about to hit him.