Who is Enzo's imaginary friend?

Enzo's imaginary friend is King Karma. This character embodies the themes of fate and consequence that resonate throughout the narrative. King Karma acts as a sort of guide for Enzo, representing philosophical ideas about how one's actions shape their life and the lives of others. Enzo, being a dog with a deep understanding of human emotions and experiences, uses King Karma to articulate his thoughts on life, relationships, and the complexities of the world around him. This imaginary friend allows Enzo to process his experiences and challenges, ultimately reflecting the book's exploration of loyalty, love, and the profound connections between animals and humans.