According to Rev Felix Aubel, practitioners of the dark arts -- and let's be clear that he indicates these are witches of the wicked variety -- are abundant in the countryside of Wales.
Read the Telegraph article and make of it what you will, but Aubel's details about the number of witches and occultists (read: Satanists) and what they've done seems suspect. Even more so given his autobiography, A Rebel's Story, came out in October 2012.
Bad deeds and bad intentions ... let's allow that people are capable of witchiness, but Aubel makes rural Wales sound like a Hammer horror film. We smell an attempt to boost lagging book sales.
Oh well. Here's a cool illustration by John R. Neill of the Wicked Witch of the East from L. Frank Baum's The Tin Woodman of Oz:
[A twirl of our gnarled crone finger to Fortean Times for the Telegraph link.]