Black Magic begins with this ominous first line: 'In the large room of a house in a certain quiet city in Flanders, a man was guilding a devil'. That person is Dirk Renswoude, a craftsman and loner of noble birth who has been mistreated in some unspecified way by his family. He meets Thierry, a young scholar on his way to study at the university at Basle and they soon discover that they have a shared fascination with the black arts. However, Thierry is initially cautious and afraid of blasphemy, whilst Dirk is ambitious to be ""as great as the Master we serve can make his followers"" and...