Novels

• Strangewood (Signet, 1999)
• Straight On 'Til Morning (Signet, 2001)
• The Ferryman (Signet, 2002)
• The Boys Are Back in Town (Bantam, 2004)
• Wildwood Road (Bantam, 2005)
• Bloodstained Oz - co-authored with James A. Moore (Earthling Publications 2006)
• Baltimore, or The Steadfast Tin Soldier and the Vampire (co-authored with Mike Mignola)
• Poison Ink (Delacorte, 2008)
• Soulless (MTV Books, 2008)
• When Rose Wakes (2010)
• Bloodstained Wonderland - co-authored with James A. Moore (Earthling Publications tbd)
• Fresh Kill - co-authored with James A. Moore (tbd)

The Hidden Cities

The Hidden Cities series all co-authored with Tim Lebbon

• Mind the Gap (Spectra, 2008)
• Map of Moments (Spectra, 2009)
• The Chamber of Ten (Spectra, 2010)
• The Shadow Men (Spectra, 2011)

The Veil

• The Myth Hunters (Bantam, 2006)
• The Borderkind (Bantam, 2007)
• The Lost Ones (Bantam, 2008)

The Shadow Saga

• Of Saints and Shadows (Berkley, 1994)
• Angel Souls and Devil Hearts (Berkley, 1995)
• Of Masques and Martyrs (Ace, 1998)
• The Gathering Dark (Berkley, 2003)
• Waking Nightmares (Berkley, 2011)

The Menagerie

The Menagerie series all co-authored with Tom Sniegoski

• The Nimble Man (Ace, 2004)
• Tears of the Furies (Ace, 2005)
• Stones Unturned (Ace, 2006)
• Crashing Paradise (Ace, 2007)

Ghosts of Albion

Ghosts of Albion related books are co-authored with Amber Benson.

• Accursed (Del Rey, 2005)
• Astray (Subterranean, 2005)
• Initiation (Subterranean, 2006)
• Witchery (Del Rey, 2006)

Hellboy

Hellboy related books with cover and other illustrations by Mike Mignola

• Hellboy: The Lost Army (Dark Horse, 1997)
• Hellboy: The Bones of Giants (Dark Horse, 2001)
• Hellboy: The Dragon Pool (Pocket Books, 2007)

Body of Evidence

• Body Bags (Pocket, 1999)
• Thief of Hearts (Pocket, 1999)
• Soul Survivor (Pocket, 1999)
• Meets the Eye (Pocket, 2000)
• Head Games (Pocket, 2000)
• Skin Deep - co-authoered with Rick Hautala (Pocket, 2000)
• Burning Bones - co-authoered with Rick Hautala (Pocket, 2001)
• Brain Trust - co-authoered with Rick Hautala (Pocket, 2001)
• Last Breath - co-authoered with Rick Hautala (Pocket, 2004)
• Throat Culture - co-authoered with Rick Hautala (Pocket, 2005)

OutCast

All co-authored with Tom Sniegoski

• OutCast: The Un-Magician (Pocket, 2004)
• OutCast: Dragon Secrets (Pocket, 2004)
• OutCast: Ghostfire (Pocket, 2005)
• OutCast: Wurm War (Pocket, 2005)

Prowlers

• Prowlers (Pocket, 2001)
• Laws of Nature (Pocket, 2001)
• Predator and Prey (Pocket, 2001)
• Wild Things (Pocket, 2002)

Buffy the Vampire Slayer

Buffy the Vampire Slayer related books.

• Halloween Rain - Co-authored with Nancy Holder (Pocket, 1997)
• Blooded - Co-authored with Nancy Holder (Pocket 1998)
• Child of the Hunt - Co-authored with Nancy Holder (Pocket 1998)
• The Gatekeeper series - all co-authored with Nancy Holder

Out of the Madhouse (Pocket 1999)

Ghost Roads (Pocket 1999)

Sons of Entropy (Pocket 1999)

• Immortal - co-authored with Nancy Holder (hardcover, Pocket, 1999)
• Sins of the Father (Pocket, 1999)
• Pretty Maids All in a Row (hardcover, Pocket, 2000)
• The Lost Slayer a 4 part series(Pocket 2001)

Prophecies

Dark Times

King of the Dead

Original Sins

• Into the Wild (Pocket, 2002)
• The Wisdom of War (Pocket, 2002)
• Monster Island co-authored with Tom Sniegoski (hardcover, Pocket, 2003)
• Dark Congress (Simon Spotlight, 2007)

Young Adult Novels

• Beach Blanket Psycho (Bantam YA, 1995)
• Bikini (Bantam YA, 1995)
• Force Majeure co-authored with Tom Sniegoski (Pocket, 2002)
• Poison Ink

The Hollow series

Young Adult series co-authored with Ford Lytle Gilmore. The series is based on Washington Irving's The Legend of Sleepy Hollow.

1. Horseman (Pocket, 2005)
2. Drowned (Pocket, 2005)
3. Mischief (Pocket, 2006)
4. Enemies (Pocket, 2006)

The Waking

Young Adult series written under the pseudonym "Thomas Randall"

1. Dreams of the Dead (Bloomsbury, 2009)
2. Spirits of the Noh (Bloomsbury, 2011)
3. A Winter of Ghosts (Bloomsbury, 2011)

The Secret Journeys of Jack London

Young Adult series co-authored with "Tim Lebbon"

1. The Wild (HarperCollins, 2011)
2. The Sea Wolves (HarperCollins, tbd)

Other Media Tie-ins

Battlestar Galactica

* Battlestar Galactica: Armageddon

* Battlestar Galactica: Warhawk

Daredevil

* Daredevil: Predator's Smile

Gen¹³

* Gen¹³: Netherwar - co-authored with Jeff Mariotte

Justice League

* Justice League: Exterminators

King Kong

* King Kong - official novelization of the 2005 film

X-Men

* X-Men: Mutant Empire-Siege

* X-Men: Mutant Empire-Sanctuary

* X-Men: Mutant Empire-Salvation

* X-Men: Codename Wolverine

Comics

• Talent (with Thomas E. Sniegoski, Boom! Studios, 2006)
• The Sisterhood (withTom Sniegoski, Archaia, 2008)
• The Plague Ships (with Mike Mignola, Dark Horse Comics, 2010)