In this, the seminal Cambrinus short story, Cambrinus is an apprentice glassblower in the Flemish village of Fresnes-sur-Escaut, but he believes that he lacks the skill and upward mobility to succeed in glassblowing. He becomes smitten with the master glassblower's daughter, Flandrine. When he tells her, she rebuffs him and he leaves in disgrace. He apprentices himself to a viol master and becomes a great player. One day, he summons the courage to climb on a barrel and play publicly. He plays well, but just as he has whipped the crowd into a dance, the sight of Flandrine flusters him, and he bungles his playing. The villagers, believing Cambrinus tripped them up on purpose, pull him off the barrel to jeer and strike him. A contemptuous judge called Jocko sentences Cambrinus to a month in prison. When Cambrinus emerges a month later, he feels so ashamed that he prepares to hang himself. As he stands with the noose around his neck, a colourfully-dressed stranger appears. Cambrinus recognizes him by his horns: it is Beelzebub. As they chat, Beelzebub reveals that he has killed the judge, and now expects to collect Cambrinus' soul, for, he says, such is his fate if he hangs himself. Not wanting to go to hell or to return to life as he knew it, Cambrinus tries to bargain. Beelzebub cannot make Flandrine love him, so Cambrinus settles for forgetting his affection for her; he also wants revenge on the villagers. Beelzebub tells him that the way to forget is if "one nail drives out another".
