Fantasy, Urban Fantasy || This powerful sequel to the A.M. Dellamonica's Sunburst Award–winning contemporary fantasy Indigo Springs starts in the small town in Oregon where Astrid Lethewood discovered an underground river of blue liquid—Vitagua—that is pure magic. Everything it touches is changed. The secret is out—and the world will never be the same. Astrid's best friend, Sahara, has been corrupted by the blue magic, and now leads a cult that seeks to rule the world. Astrid, on the other hand, tries to heal the world. Conflicting ambitions, star-crossed lovers, and those who fear and hate magic combine in a terrible conflagration, pitting friend against friend, magic against magic, and the power of nations against a small band of zealots, with the fate of the world at stake.