John Davys Beresford (1873-1947) was an English writer, now remembered for his early science fiction and short stories in the horror story and ghost story genres. 'Powers of the Air' is a strange and evocative tale of superstition, supernatural forces and suspense. When the 'black time' comes, it is not safe to go out on the cliffs...but a young outsider from the town is determined to prove that the Powers do not exist.