When poison boy Dalton Fly, a food taster for the rich, narrowly escapes death, he sets out to save his city from the poisoners within. Poison boy Dalton Fly, a lowly food taster to the rich, has a lucky escape after drinking laced wine. But his mate is less fortunate, and Dalton wants answers. Who murdered his friend and what were they were really after? With the help of aristocratic girl, Scarlet Dropmore, whose life he unwittingly saved, he sets out to rescue his city from the poisoners within.