Syms Covington has landed the job of a lifetime - cabin boy and fiddler on Charles Darwin's Beagle. But when he is separated from the crew during a storm, his life takes a truly extraordinary turn. Shipwrecked on a Galapagos island, he makes a discovery that could change the world - and make his fortune. But should he share his find, or will it lead to the extinction of a legendary species? There's one person who could help, but he's busy writing a book ...