Magic has been banished back to the edges of the continent, and Sorin the Master Chemist has one remaining task: restore the guilds of Gasta Fletcha to save the continent's economy, and its soul. Except the continent has never been more prosperous. Queen Magda is ready to leave the guilds behind and embrace the incoming factories. Sorin's task of releasing trapped skills from magic amulets is no longer a priority of the crown. Sorin would rather die than give up on the guilds, but Sorin does not get to make these decisions. To make matters worse, the magic of Gasta Fletcha will not be so easily ignored.

Sorin would like nothing more than to sort both their personal and professional differences with Magda, but, spurred by a disembodied magic voice from an amulet, they set out on a quest across the continent, hoping to discover a new purpose. What they find instead is a trail of destruction in the wake of a rapidly growing industry: factories with horrible working conditions, children maimed in the pursuit of economic growth, and the devastating loss of guild tradition. It will take a blend of magic, chemistry, tradition, and progress to save the guilds and Gasta Fletcha, and Sorin must decide what is truly in the people's best interest—cultural history or economic prosperity. One choice will cost Sorin their queen. The other will cost them their heritage.