Born in a bunker during the war, Chesterfield was raised by his parents Chester and Margaret, an historian and science teacher respectively. On the discovery that the war was over, the family eventually left the bunker in 1957. By this time Chesterfield had a vast knowledge of science and history, having memorised every tome in the impressive library the family had brought down with them to survive the war.
He was immediately accepted into London University and now, in 1971, is the leading Professor of Occult Studies there. There is not a legend, myth, fable, superstition or folk tale that he has not the most intimate of knowledge.
And so he was an obvious choice for the enigmatic Sir Maxwell House when putting together The Monster Hunters. After turning the offer down on several occasions, it was the death of his wife at the hand of an ancient Egyptian God inside a pyramid in Giza that eventually convinced him to join the hunt.