An alternative cover edition for this ASIN can be found here. Demons, ghouls, vampires, and Syths. The Netherworld Division is an organization of angels and humans who are there to keep the escaped creatures from the Netherworld in check in this action-packed paranormal thriller. Introducing Koa Ryeo-won, a half-blood vampire with an enchanted sword and a membership to the most elite vampire castle in Europe. A vengeful demon threatens everything Koa has worked hard to protect. Not even Halston and his legendary infinity gun can stop him, but Koa's mother might be strong enough to do it—if only her curse can be broken. There is one vampire that can help. First stop, the Ivory Tower, where only the most notorious supernatural beings are kept. But even that won't be enough. Koa must prepare herself to return to the place that nearly killed her. The Netherworld. The Chronicles of Koa Series Publication order: Netherworld (The Chronicles of Koa, Book 1) Dark Prophet (The Chronicles of Koa, Book 2) Lyrinian Blade (The Chronicles of Koa, Book 3)