* Survival: The story centers around the desperate struggle for survival on a remote island in the Caribbean. It explores the physical, mental, and emotional challenges of surviving in a harsh environment with limited resources. This includes overcoming hunger, thirst, fear, and loneliness.
* Friendship and Loyalty: The bond between Phillip and Timothy, two boys stranded on the island, forms the heart of the story. Their friendship is tested by adversity, but ultimately deepens their loyalty and commitment to each other.
* The Power of Nature: The story emphasizes the destructive power of nature, as seen in the devastating hurricane that throws the boys off course. The island itself is portrayed as both beautiful and unforgiving, and the characters must adapt to its rhythms and demands.
* Race and Prejudice: Phillip and Timothy's friendship transcends racial boundaries in a time when segregation was still deeply embedded in American society. This theme underscores the inherent humanity shared by individuals despite differences in background or skin color.
* Hope and Resilience: Despite the bleakness of their situation, Phillip and Timothy never give up hope. Their resilience in the face of hardship serves as a powerful reminder of the human spirit's capacity for endurance and adaptation.
* The Importance of Education: Timothy's knowledge of survival skills acquired through his schooling proves crucial to their survival. This underscores the value of education and preparation in facing unforeseen challenges.
"Cay" is a complex and compelling novel that explores these themes through its captivating narrative, making it a timeless story about human nature and the power of the human spirit.