Until a number of years ago, we seldom spoke about Satanism, or even Satan, and hardly knew what Satanism was all about. But things have drastically changed and there are now numerous books published on the topic of Satan, warnings of his danger and his influence in the world. There is not only a spirit world which is strong and good – a balanced understanding of Christ and His Church includes the realization of conflict with the evil spirit or, as St. John calls him, the spirit of Darkness. Given the magnitude of the evil in the world there must be, besides human malice, an invisible malice that is at work in the human race today. Fr. Hardon provides much to consider – – – let us benefit from it.