Alex Irvine is the author of seven novels, including The Narrows, A Scattering of Jades, and Batman: Inferno, and two collections of short stories, most recently Pictures from an Expedition. He has also written a Marvel Comics series, Hellstorm: Son of Satan, and online narratives. His fiction, which has been translated into nine languages, has won the Locus, Crawford, and IHG awards and been nominated for the Pushcart Prize and the World Fantasy Award. In 2005, he was awarded the New England Press Association's top prize for investigative journalism, and that same year was part of a writing team that won a Webby and the International Game Developers Association Innovation award.

Twenty-three years ago, when Sam Winchester was a baby and his brother Dean just a toddler, they lost their mother to a mysterious and demonic supernatural force. In the aftermath of the tragedy, the boys' father John raised his sons to be warriors, teaching them about the creatures that live in the dark corners and on the back roads of America ...and how to kill them. Now Sam and Dean travel the country, ridding small towns and large cities of creatures that most people believe only exist in folklore, superstition, and nightmares.