Untrained. Untested. Unleashed. With her unique magical abilities, Opal Cowan has always felt unsure of her place at Sitia's magic academy - but now it's time to test her powers in the real world. Under threat from a deadly massacre, the powerful Stormdancer clan need Opal's unusual skills to protect their people. And their plea is impossible to resist, especially when it comes from mysterious, mercurial Kade. Yet pulling her powers in unfamiliar directions pushes Opal to uncover a new kind of magic as stunningly potent as it is frightening, with danger and deception rising around her, will Opal's untested abilities destroy her - or save them all?