I'm really afraid that he doesn't know what he's getting into. He believes that there is some kind of supernatural force in Wicca. I know that there is and it is Satan. There is this webpage on the internet that has ways for Wiccans to argue their point against Christianity. Many witches are solitary.
Some witches band together in covens .
Witches worship false gods and goddesses . Rituals, spells, charms, and chants are used in their practices. Sybil Leek wrote several books on witches and witchcraft. God has given you a special gift for dealing with satanic cults. There are MANY other witchcraft organizations.