Pierce, Tamora - Circle Of Magic 04 - Briar's Book -

The "circle" of the four mages is fully realized here; they prove that their combined magic is significantly more powerful than their individual talents. Main Characters

According to Wikipedia , this book concludes the initial journey of these characters before they transition into the The Circle Opens quartet as older students. Pierce, Tamora - Circle of Magic 04 - Briar's Book

They provide the magical infrastructure—thread, lightning, and metal—needed to isolate and destroy the virus. Setting The "circle" of the four mages is fully