Riga is sixteen, bored, angry, frustrated, unpredictable and way out of control. An ordinary teenager, in other words, but one who's desperately trying to make sense of an extraordinary world. Turns out that climate science ended up getting rid of the climate altogether, and the survivors live in artificial domes from which their only escape are the virtual worlds of the Second Skin. Unless you're a Mariner like Colt Covance, violinist, martial arts expert and genius in Artificial Intelligence, and your job is to help salvage what's left of civilisation after the Flood. It's the world post 2012, it's The Hunger Games without the rules, it's Twilight without the vampires, Donnie Darko without the rabbit, Avatar without the Smurfs, Xbox with electrifying extras, as Riga and Colt pursue the separate searches that will lead them to the edge of the horrifying mystery only the Turing Test can solve. Because there's only one way to tell if he's human...