When darkness means certain death and survival depends on reaching the dawn, the woman whose magic broke the world will carve another path: defy the dusk.

In the Sundered world, there are two options: Ride the dawn, or face what rises in the night.

Twenty years ago, Lirien's magic fractured the world and unleashed nocturnal creatures that brought civilization to its knees. Amidst the carnage came salvation: The most powerful survivors were invited to board Dawnrider, a high-speed rig that would deliver those aboard into a new era.

The rest of humanity was left to die.

Instead, a king rose from the darkness to lead them.

In the years since, Lirien has dedicated her magic to Dawnrider while secretly plotting to overthrow the tyrant who rules the rig with an iron fist. But just as Lirien is ready to strike against him, she is violently abducted by Vox--the king of the feralists.

The mercurial Vox gives her two choices: Fight the creatures that hunt the night or be fed to them. Lirien agrees to join his ranks, but embarks on a strategy of seduction that will return her to Dawnrider.

Yet as Vox pushes the limits of her magic, Lirien begins to question whether defying the dusk is the true path to salvation. Intoxicated by both Vox and his war against the night, Lirien must decide where her loyalties truly lie--and how far she's willing to go for redemption.