The Undead Pool
Witch and day-walking demon Rachel Morgan has managed to save the demonic ever after from shrinking, but at a high cost. Now, strange magic is attacking Cincinnati and the Hollows, causing spells to backfire or go horribly wrong, and the truce between the races, between Inderlander and human, is shattering. Rachel must stop this dark necromancy before the undead vampire masters who keep the rest of the undead under control are lost and all-out supernatural war breaks out.
Rachel knows of only weapon to ensure the peace: ancient elven wild magic, which carries its own perils. And no one know better than Rachel that no good deed goes unpunished...
Kim Harrison
Kim Harrison is best known as the author of the New York Times #1 best selling Hollows series, but she has written more than urban fantasy and has published over two-dozen books spanning the gamut from young adult, thriller, several anthologies, and has scripted two original graphic novels. She has also published traditional fantasy under the name Dawn Cook. Kim is currently working on a new Hollows book between other, non related, urban fantasy projects.
The Hollows
The Hollows series (also called the Rachel Morgan series) is a series of eleven mystery novels, six short stories, one graphic novel, and one compendium resource by Kim Harrison, published by HarperCollins Publishers, in an urban fantasy alternate history universe and set primarily in the city of Cincinnati and its suburbs.
The alternate history is built upon two premises: the recent open existence of magical and supernatural species, primarily witches, vampires, and werewolves, with the human population; and the historical investment of Cold War military spending in genetic engineering as opposed to the Space Race, which resulted in the accidental release of a virus via a genetically modified tomato in the 1960s that killed a significant portion of the human population. The series is set approximately forty years after this plague, referred to as 'The Turn' within the series.
The Hollows consists of eighteen primary books, and includes two additional books that complement the series but are not considered mandatory reads. The current recommended reading order for the series is provided below.