Lira and the diwatas learn the horrifying truth—Hagorn now commands the Hadezar, an unstoppable undead force immune to conventional weapons and even the power of the gems. As Lireo braces for attack, Pirena rushes to help in her own way, while the sisters realize their divided strength may no longer be enough. In Devas, Kahlil learns that unity may be the only way to defeat the darkness born from Balaak.