A faceless evil moves in the shadows of Caelith...Just when they're reunited, Poppy and Thom are ripped apart, prevented from joining the Firekind in the fight against the nephyl. Captive in her father's house and battling for her life, Poppy comes face to face with the dangers of living in Caelith and a treacherous new elemental. Mysteriously, the Firekind have disappeared, and she fears the worst. Unsure if Poppy is alive, Thom must journey perilous roads to Symsara, seeking help from his estranged sister. Katla might stab him in the back, but she's the key to navigating the sordid underworld hiding the information he needs. Above all, a threat beyond imagining, fueled by the wiles of the nephyl, is poised to destroy Caelith and with it elementalkind. Against staggering odds, Thom and Poppy must join with dubious and unusual allies, pushing the boundaries of the possible to rescue their homeland before it's corrupted beyond saving.