As a glassmaker & a magician-in-training Opal Cowen understands trial by fire. Now it's time to test her mettle. Someone has sabotaged the Stormdancer clan's glass orbs killing their most powerful magicians. The Stormdancers--particularly the mysterious & mercurial Kade--require Opal's unique talents to prevent it happening again. But when the mission goes awry Opal must tap in to a new kind of magic as stunningly potent as it is frightening. & the further she delves into the intrigue behind the glass & magic the more distorted things appear. With lives hanging in the balance--including her own--Opal must control powers she hadn't known she possessed...powers that might lead to disaster beyond anything she's ever known.