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Title Nocturnal
Publisher Crown Publishing
Published Apr 2012
Pages 566
ISBN 978-0307406347
Podcasted 2007 (Orig)
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Nocturnal is a thriller / horror novel by author Scott Sigler. The novel was originally launched as a work in progress rough draft at midnight on October 31st, 2007, in podcast form. A revised version of the novel was published by Crown Publishing in April 2012.


Homicide detective Bryan Clauser is losing his mind.

How else to explain the dreams he keeps having—dreams that mirror, with impossible accuracy, the gruesome serial murders taking place all over San Francisco? How else to explain the feelings these dreams provoke in him—not disgust, not horror, but excitement?

As Bryan and his longtime partner, Lawrence “Pookie” Chang, investigate the murders, they learn that things are even stranger than they at first seem. For the victims are all enemies of a seemingly ordinary young boy—a boy who is gripped by the same dreams that haunt Bryan. Meanwhile, a shadowy vigilante, seemingly armed with superhuman powers, is out there killing the killers. And Bryan and Pookie’s superiors—from the mayor on down—seem strangely eager to keep the detectives from discovering the truth.

Doubting his own sanity and stripped of his badge, Bryan begins to suspect that he’s stumbled into the crosshairs of a shadow war that has gripped his city for more than a century—a war waged by a race of killers living in San Francisco’s unknown, underground ruins, emerging at night to feed on those who will not be missed.

And as Bryan learns the truth about his own intimate connections to the killings, he discovers that those who matter most to him are in mortal danger…and that he may be the only man gifted—or cursed—with the power to do battle with the nocturnals.


San Francisco Police Department

Name Information
Bryan Clauser SFPD Homicide Detective. Partner to "Pookie" Chang
"Pookie" (Lawrence) Chang SFPD Homicide Detective. Partner to Bryan Clauser
Stephen Wood SFPD Missing Persons Unit
Baldwin Metz Medical Examiner for the SFPD

Other Characters

Name Information
Tony Tryon FBI Agent
Jennifer Wills Assistant District Attorney

Release Schedule

Similar to the author’s first book, EarthCore, the book release of Nocturnal followed a non-traditional path to print publication. The following timeline details the distribution lifecycle of the novel that culminated with the April 2012 print reboot. The Translations Page also provides a comprehensive listing of languages available for this novel.


Cover Art Edition Publisher Release Date Site
Hardcover (ISBN: 978-0307406347) U.S. Crown Publishing April 3, 2012 U.S.
Paperback (ISBN: 978-1444700961) Hodder & Stoughton April 12, 2011 Amazon U.K.


Cover Art Edition Country Release Date Site
Serialized Podcast Audiobook Worldwide (Internet) October, 31 2007 Currently Unavailable

Theme Music

The 2007 rough draft podcast version of Nocturnal used the song Remember Your Ghost by the band Uncrowned. For a comprehensive list of music used in the podcast versions of Scott's works, refer to the Theme Music page.

Nocturnal Characters Named for Fans

Continuing in his innovative style, author Scott Sigler’s original 2007 version of the novel Nocturnal was released amid a contest where randomly chosen fans will have their names appear in his novel. The luckiest of the fans also had their character die a horrific and untimely death. The following link references a table dedicated to tracking these fan-named characters with indicators of which characters become victims.



The rough draft podcast version of Nocturnal earned the following award:

FoundersChoice 2009.gif
2009 - Recipient of the Founder's Choice Award from

Notable Reviews

Novels by Scott Sigler

Aliens: Phalanx • Alive • Alight • Alone • EarthCore • Mount Fitz Roy • Ancestor • Descendant • Infected • Contagious • Pandemic • The Rookie • The Starter • The All-Pro  • The MVP • The Champion • The Gangster • The Crypt • Nocturnal