I read a book in my teens (70's) written by a real male witch. The plot as I remember it was...scientists had discovered a way to use the earth as an energy source by installing large poles at the north and south poles basically creating a battery but something goes wrong and instead of taking the blame they blame the witches and a witch hunt ensues.
I even remember the back cover. It was an old man with a beard sitting at a table with a typewriter and it said his name and that he was a practicing witch.