Briar's Book : The Sensational Conclusion to the Beloved, Bestselling Circle of Magic Quartet

Briar Moss and his fellow mages-in-training Sandry, Tris, and Daja, have faced earthquakes, pirates, and fire. But their greatest challenge is still ahead. It comes in the unexpected form of a disease, a devastating plague that is ravaging the citizens of Emelan.

Soon the four youngsters are enlisted in the city's desperate attempt to find a cure, an effort that will require all their courage and all their skill, magical and otherwise. But the source of the plague is stranger than any…