Fitz — A brilliant but chaotic former chief engineer whose warnings about the ocean are absolutely right. His inventions rarely work, but his determination eventually makes him the story’s unlikely hero.
Rachel — A curious, stubborn 12-year-old newcomer to Fiji who is partially deaf and wears a cochlear implant. When she discovers she can speak to sea creatures, her journey becomes one of courage, identity, and belonging.
Miriam Voss — A powerful, elegant visionary who chooses to survive climate change rather than fight it. Certain that protecting a privileged few is enough, she must eventually learn that survival means nothing if it leaves everyone else behind.