Vampires
The central symbol in the novel is vampires, mentioned throughout the book. The vampires symbolize genuine uncertainties. When the Monroe family brings in a new pet called Bunnicula, Harold and Chester are afraid that their peaceful coexistence with the family will be disrupted. Chester says Bunnicula is a vampire and tries to convince everyone in the family using different theories. Chester suspects that Bunnicula is not an ordinary pet, and he imagines that he has fangs similar to vampires. Harold also gets afraid when seeing Toby, his best friend, fight with his brother over who should care for Bunnicula. Chester continues to persist that Bunnicula is a vampire, and he tries to starve him to death, but the family rescues him.
The raw steak
The raw steak symbolizes Chester's rage over Bunnicula. Chester uses the raw steak to hit Bunnicula thinking it will kill him. Chester had initially read about steak that kills vampires, and he uses it to eliminate Bunnicula. The raw steak illustrates Chester's determination and fury to kick Bunnicula out of Monroe's home.
The carrot juice
The carrot juice symbolizes the peaceful coexistence among the pets. After a fierce confrontation between Chester and Bunnicula, the family realizes that the best diet that can keep Bunnicula in his house for the entire night is carrot juice. When Bunnicula starts taking the carrot juice, he stops sneaking out of his house, which makes Chester stop doubting that he is a vampire.
