Lucy is the last Chantress, the only remaining girl who can sing magic into the world. Since she defeated the evil Lord Scargrave, England has changed—and not for the better. With crops failing and the people rebelling, Lucy is called urgently back to King Henry’s court. His Inner Council is convinced that making gold through alchemy will save England. But a critical element to the alchemical process has been stolen. Lucy is tasked with finding it with her magic… or else. And until she succeeds, the castle is on lockdown.
Court too has changed. Scargrave's brutal Chantress-hunter has become King Henry's closest advisor. Lucy’s beloved Nat has fallen out of favor and is shunned by his colleagues; their romance means trouble for both of them. Worst of all, something goes wrong with Lucy’s magic. The palace is a labyrinth, and there’s a monster at its heart — a monster who may have the power to defeat Lucy once and for all. Quoted from Goodreads