As the dark forces of the Undead sweep across what remains of the empire, Nazafareen must obey the summons of a demon queen to save Darius's father, Victor. Burdened with a power she doesn't understand and can barely control, Nazafareen embarks on a perilous journey through the shadowlands to the House-Behind-the-Veil. But what awaits her there is worse than she ever imagined . . .A thousand leagues away, Tijah leads a group of children on a desperate mission to rescue the prisoner...

Nocturne, a wilderness of eternal night.Solis, a wasteland of endless day.It’s been a thousand years since the Avas Vatras tried to burn the world to ashes. A thousand years since they were imprisoned in the arid death zone called the Kiln. But revenge is a dish best served cold—even, apparently, by the children of fire. As war brews again, a young woman named Nazafareen must learn to control her own volatile power to stop...