* The Devil's Teeth (2005)
* The Boatman's Daughter (2006)
* The Bone Orchard (2008)
* The Girl Who Wouldn't Die (2010)
* The Haunting of Maddy Clare (2012)
* The Witching Hour (2014)
* The Thirteenth Hour (2016)
* The Book of the Dead (2018)
* The House of Shadows (2020)
* The Hour of the Wolf (2022)
Short Stories
* "The Red Room" (2004)
* "The Pale Lady" (2005)
* "The Black Dog" (2006)
* "The White Horse" (2007)
* "The Green Man" (2008)
* "The Blue Boy" (2009)
* "The Yellow Wallpaper" (2010)
* "The Tell-Tale Heart" (2011)
* "The Cask of Amontillado" (2012)
* "The Masque of the Red Death" (2013)
Non-Fiction
* The Supernatural Reader: A Guide to the Best Ghost Stories, Horror Novels, and Other Eerie Reads (2011)
* The Haunted House: A History and Guide to the World's Most Terrifying Homes (2013)
* The Vampire: A History and Guide to the World's Most Mysterious Creatures (2015)
* The Werewolf: A History and Guide to the World's Most Terrifying Creatures (2017)
* The Witch: A History and Guide to the World's Most Powerful Women (2019)