Watch VoirFilms. The Occult Agenda documentary series is designed to awaken the church and non-believers alike to the spiritual warfare happening in the world today. Part I focuses on the Harry Potter phenomenon that has swept the world since author J.K. Rowling introduced her best-selling book series. But is Potter-mania merely the result of imaginative writing and clever marketing? Or could there be a hidden power behind the craze that has cast a spell on adults and children alike?