In the novel "Devil's Cub" by Georgette Heyer, there is a notable introduction of the character Frederick, who is described as the cousin of another character. The speaker implies a degree of familiarity with Frederick, hinting that he has a notorious reputation.
Frederick is painted in a negative light, being referred to as "very wicked" and known for his propensity for violence, particularly through duels where he kills opponents. This characterization sets the tone for the interactions that follow, indicating tension and the anticipation of conflict associated with Frederick's presence.