The nation of Torwyn is run on the power of industry, and industry is run by the Guilds. Chief among them are the Hawkspurs, whose responsibility it is to keep the gears of the empire turning. That’s exactly why matriarch Rosomon Hawkspur sends each of her heirs to the far reaches of the nation. Conall, the eldest son, is sent to the distant frontier to earn his stripes in the military. It is here that he faces a threat he could have never seen coming: the first rumblings of revolution.

For decades, the brothers of the Sixth Order have fought a savage war against the Lonak clans amid the frozen peaks of their dominion. When word reaches the North of a fresh outbreak of the dreaded Red Hand, Brother Sollis, the finest swordsman in the Order, leads a small band to a long-abandoned castle in search of a potential cure but discovers a far greater threat lurking in the mountains. Enemies become allies as Sollis leads an increasingly desperate fight against an inhuman enemy steeped in the power of the Dark.

Gyre hasn't seen his beloved sister since their parents sold her to the mysterious Twilight Order. Now, 12 years after her disappearance, Gyre's sole focus is revenge, and he's willing to risk anything and anyone to claim enough power to destroy the Order. Chasing rumors of a fabled city protecting a powerful artifact, Gyre comes face-to-face with his lost sister. But she isn't who she once was.

Ready or not, Roper has been thrust into a position of leadership that he's woefully ill prepared for. Now, a massive army approaches from the south, old allies turn against him, and new rivals seek to undermine his rule. Facing attack from within and without, Roper must forge reckless alliances, no matter the cost, to save his kingdom.

In the holy city of Tova, the winter solstice is usually a time for celebration and renewal, but this year it coincides with a solar eclipse, a rare celestial even proscribed by the Sun Priest as an unbalancing of the world. Meanwhile, a ship launches from a distant city bound for Tova and set to arrive on the solstice. The captain of the ship, Xiala, is a disgraced Teek whose song can calm the waters around her as easily as it can warp a man’s mind. Her ship carries one passenger.