When Ethan saves the life of a firestarter, it's nothing unusual. He's the only healer on call at the hospital – and that gunshot wound isn't going to regenerate itself. But his patient turns out to be Corinna Arden, heiress to a pharmaceutical empire controlling Britain's water supply. Her twin, Javier, is a man who (a) starts sending Ethan flowers at work, (b) seems terrified of a secret, and (c) has the cheekbones and earnestness to make up for both.
Ethan indulges in (what he thinks will be) a brief, harmless romance – but is swept up in a deadly collusion over Project Earthflown: the largest reconstruction tender since London clawed its way out of the rising sea.
Determined to follow the money, Ollie is a journalist who finds a corpse at the end of a too-convenient tip. The fate of water – and who profits – might depend on the perennial question: has Ethan lost his mind, or is he just an idiot?