Lady Sandrilene fa Toren knows all about unusual magic - she herself spins and weaves it like thread. But when she witnessed a boy dancing a spell, even she is confounded. To her dismay, Sandry learns that as the mage who discovered the power of the young dancer, she must be his teacher.
Before lessons can begin, however, Sandry and her uncle, Duke Vedris, get news of a mysterious murderer stalking a clan of local merchants. The killer employs the strangest magic of all: the ability to reduce essence to nothingness.
As the murders mount and the killer grows bolder, Sandry's teaching takes on a grave purpose. For it becomes clear to everyone that the killings can only be stopped by the combined workings of two people: the young teacher and her even younger student.
Three years have passed since the events of the last quartet. Briar, Daja and Tris have left with their teachers to study abroad, leaving Sandry alone to attend to the troubles in Summersea. It's pretty obvious from the get-go that Sandry has done some growing these past couple years. Not only is her magic more refined, but so is her attitude. She's still far from the snobbery of most Nobles or wealthy, but she is much more attuned to her status as a Noble and a mage, and what it affords and requires from her.
