What does Denny fear losing the most during the custody battle?

Denny’s greatest fear during the custody battle centers on the potential loss of his relationship with his daughter, Zoë. Throughout "The Art of Racing in the Rain," the bond between Denny and Zoë is portrayed as deeply meaningful and essential to his identity as a father. The stakes are high in the custody battle, and Denny's actions and decisions are heavily influenced by his desire to maintain this precious relationship. This emotional connection underscores his motivations and highlights the profound impact that family dynamics can have on personal struggles. Denny’s attachment to Zoë serves as a central theme in the narrative, illustrating that for him, the love and connection to his daughter outweigh material possessions or even his career ambitions.