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...
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Kim Harrison
Kim Harrison is a literary force whose work blurs the lines between urban fantasy, science fiction, and thriller, creating stories that captivate and intrigue readers from all walks of life. Born in Michigan, her journey into the world of writing was shaped by a deep love for characters who live on the edge of magic, mystery, and the everyday. Harrison's stories are set in dark, vivid worlds that resonate with both fans of supernatural tales and lovers of the unknown, earning her a dedicated following and a coveted spot on the New York Times bestseller list.
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 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.

