The Gray Kings. Graylands, #3

Graylands is where people go when they don't want to be found. Since its discovery, the country has settled into a loose collection of territories for the unwanted and unmoored to disappear or begin anew. A frontier with neither king, nor ruler. But there are some who seek to dominate and turn the land into a new, whole kingdom. When that happens, war inevitably follows. After his ordeal with Bane's Gauntlet, Lock Synclaire searches for his missing sister Cassie.
His journey will take him from the ruined city of Seba to the very center of Graylands where he'll become embroiled in the war for control of the country. And, perhaps, a greater destiny as well. Meanwhile, former Chosen One and fallen princess Katrina Lamont is on her own quest for revenge. To find the closure she seeks, she will have to traverse a ravaged land and survive threats both mortal and immortal.
But first, she'll need the help of the outlaw Krutch Leeroy. As the chaos spreads, all hope rests in the hands of a demon. By chance-or plain bad luck-Lily Blackthorn finds herself in possession of a mysterious relic that may decide the country's fate. Hunted by assassins and enemies, she must risk her life and more to deliver the sacred weapon.even as it slowly kills her. With war brewing, and ancient foes rising to destroy everything, the rogues of Graylands just might have to act to preserve their home.