The irony of friendship
One of the central ironies in the novel is friendship. Under normal circumstances, friendship is a journey, and people need to know each other for a while before building a friendship. Ironically, Martin makes friends instantly when he walks off the island after his father and all adults vanish. Martin makes friendships with Lane, Darla, Neil, and others immediately after he arrives in Xibalba.
A society populated by children and governed by children.
After the adults vanish from the island, the population only consists of young children. Ironically, these children can set leadership structures and laws that govern them. Interestingly, the children also choose religious leaders to lead them in matters of religion. Therefore, it is a paradox that children can rule themselves more effectively than adults.
The irony of the church
The church is a symbol of humbleness and simplicity. Ironically, the Church Martin enters shows luxury and comfort. The narrator says, "Martin sat on a wooden stool in the middle of a church. The pews had been removed, and in a haphazard circle around him, a group of approximately forty kids reclined on sofas and plush chairs.” The church has luxury sofas and chairs, and the children sitting on them are having fun and enjoying themselves. Consequently, the church setup contradicts its purpose. The only humble person in the church is Martin because he chooses to sit on a wooden chair.