Adderhead is a character from the fantasy novel series "Inkheart" by Cornelia Funke. He is a powerful and malevolent figure who can bring characters from books to life. Adderhead is known for his desire for immortality and his ruthless pursuit of power, often using dark magic to achieve his goals. In the story, Adderhead's actions create conflict for the main characters, including Meggie and Mo. His character embodies themes of greed and the consequences of unchecked ambition, making him a significant antagonist in the series. Adderhead's presence adds tension and depth to the narrative.