After having promised to use her new powers to serve Fedu, the cunning god of death, and assist in his plans to remake the world, Koffi finds herself a prisoner in Thornkeep--a luxurious mansion with well-manicured gardens. But Fedu's beautiful realm is a lie. Koffi and many other darajas are trapped there by a deadly, inscrutable mist, making escape impossible. But something within the mist calls to Koffi, igniting her magic. It soon becomes clear that the very thing imprisoning her could be the key to not only her freedom, but finally unlocking the remaining mysteries of her own magic, allowing her to fight the god of death and perhaps even win.

While Koffi attempts to decipher the secrets of the mist and learns to wield her own deadly power, Ekon is determined to make his way to Thornkeep to fight alongside her. But leaving Lkossa is easier said than done. Ekon, once a promising soldier, is now a wanted man on the run from those he once called brother. He's forced to make new, uneasy alliances to flee Lkossa and turn his back on everything he once believed. And each day he draws closer to the realm of death, so too does Ekon draw nearer to a long-hidden truth about himself that could change his loyalties forever.

Koffi and Ekon--separated by both land and gods--risk everything to reunite. But the longer they're apart, the more they will have to reckon with changing destinies and, maybe, changing hearts.