| O chamado de Cthulhu e outros contos by H. P. Lovecraft, Guilherme Da Silva Braga - 155 pages |
| O Médico e o Monstro by Robert Louis Stevenson - 2002 - 112 pages |
| O pacto by Joe Hill - 2012 - 320 pages |
| Oak Cliff by Marion Marchetto - 2010 - 276 pages |
| Oak Hollow by Kristopher Rufty - 2013 - 441 pages |
| Obituary by David Atkins - 2011 - 454 pages |
| Objective by Kc Riley-Gyer - 2012 - 230 pages |
| Obsessed by Rick R. Reed - 2011 |
| Obsessed by Rick R. Reed - 2006 - 404 pages |
| Obsession by Ramsey Campbell - 2011 - 375 pages |
| Obsession by Wendy Morgan - 2003 - 352 pages |
| Obsession by Ramsey Campbell - 1986 - 320 pages |
| Obsession by Ramsey Campbell - 1985 - 320 pages |
| Obsession by Ramsey Campbell - 1985 - 320 pages |
| Obsession by Ramsey Campbell - 1985 - 247 pages |
| Obsidian Nights by Tiffany L. Proctor - 2008 - 349 pages |
| Occhi Rossi by Adele Patrizia D'Atri - 2007 - 84 pages |
| Occipital Deviance by Mark Keller - 2003 - 124 pages |
| October 31st by Eric Obmann - 2005 - 119 pages |
| Odd Hours by Dean Koontz - 2009 - 416 pages |
| Odd Hours by Dean Koontz - 2008 - 400 pages |
| Odd Hours by Dean Koontz - 2008 - 352 pages |
| Odd Hours by Dean Koontz - 2008 - 400 pages |
| Odd Thomas by Dean Koontz - 2009 - 432 pages |
| Odd Thomas by Dean Koontz - 2004 - 432 pages |
| Odd Thomas by Dean Koontz - 2004 - 446 pages |
| Odd Thomas by Dean Ray Koontz - 2003 - 399 pages |
| Odd Thomas by Dean Ray Koontz - 2003 - 608 pages |
| Oddly Enough by Bruce Coville - 1994 - 122 pages |
| Of Bees and Mist by Erick Setiawan - 2009 - 416 pages |
| Of Love and Evil by Anne Rice - 2011 - 237 pages |
| Of Love and Evil by Anne Rice - 2010 - 192 pages |
| Of Saints and Sacred Shadows by Jason Dean - 2012 |
| Of Saints and Shadows by Christopher Golden - 1994 - 391 pages |
| Of Wizards and Wolves by E. D. Litchfield, Jenny Long - 2008 - 556 pages |
| Of Wizards and Wolves by E. D. Litchfield, Jenny Long - 2008 - 556 pages |
| Off Season by Jack Ketchum - 2011 - 320 pages |
| Off Season by Jack Ketchum - 2011 - 308 pages |
| Off the sand road by Russell Kirk - 2002 - 199 pages |
| Offspring by Jack Ketchum - 2011 - 300 pages |
| Offspring by Jack Ketchum - 2011 - 293 pages |
| Offspring by Jack Ketchum - 2006 - 243 pages |
| Ogre by Mark Ronson - 1987 - 198 pages |
| Ojos de Fuego by Stephen King, Eduardo Goligorsky - 2001 - 528 pages |
| Ojos de fuego by Stephen King - 1996 - 428 pages |
| Oke of Okehurst - Or, the Phantom Lover (Fantasy and Horror Classics) by Vernon Lee - 2011 - 52 pages |
| Olalla by Robert Louis Stevenson - 2006 |
| Old Flames by Jack Ketchum - 2008 - 304 pages |
| Olden by James Newman - 2012 |
| Olivia by V. C. Andrews - 1999 - 456 pages |
| Olivia by V. C. Andrews - 1999 - 373 pages |
| Ollie Ollie Oxen Free by Henry P. Gravelle - 2005 - 295 pages |
| Ombre by Tommaso Landolfi - 1994 - 208 pages |
| Omens by Jim W. Coleman - 2004 - 476 pages |
| Omnium. I molti sentieri della realtà by Marco Miserocchi - 2011 - 127 pages |
| On Dangerous Ground by Lamar Underwood - 1990 - 308 pages |
| On Ghost Trails by Joe Townley - 2002 - 276 pages |
| On My Honor by Malacai Black - 1989 - 431 pages |
| On the Edge of Darkness by Barbara Erskine - 1998 - 485 pages |
| On the Lake Where the Loons Cry by Edward P. McDermott - 2009 - 14 pages |
| On the Right Side of a Dream by Sheila Williams - 2005 - 320 pages |
| On the road to Baghdad by Güneli Gün - 1991 - 377 pages |
| On the Road, Book Two by Angela White - 2010 |
| On, Off by Colleen McCullough - 2007 - 406 pages |
| On/Off by Mike Attebery - 2008 - 396 pages |
| Once by James Herbert - 2007 - 300 pages |
| Once by James Herbert - 2003 - 480 pages |
| Once Para Las Doce by Sergio A. Pineda Parra - 2012 |
| Once Upon a Nightmare by Lee Moylan - 2008 - 280 pages |
| Once... by James Herbert - 2011 - 300 pages |
| One by Conrad Williams - 2010 - 384 pages |
| One Dark Night by Kathleen Blease - 2000 - 206 pages |
| One Dark Night by Kathleen Blease - 2000 - 206 pages |
| One Door Away from Heaven by Dean Koontz - 2012 - 606 pages |
| One Foot in the Grave by M. D. Spenser - 1997 - 124 pages |
| One Foot Wrong by Sofie Laguna - 2009 - 208 pages |
| One for the Road by Steve Soderquist - 2012 |
| One for the Road by Steve Soderquist - 2012 - 52 pages |
| One for the Road by Steve Soderquist - 2012 - 52 pages |
| One Hand Screaming by Mark Leslie - 2004 - 160 pages |
| One Hand Screaming by Mark Leslie - 2004 - 160 pages |
| One Mistake by Andy Frankham-Allen - 2010 |
| One Rainy Night by Richard Laymon - 2012 - 309 pages |
| One Way Home by Edward Cerda - 2009 |
| Only Child by Jack Ketchum - 2007 - 404 pages |
| Only Immortal by Raymond Mayotte - 2010 - 246 pages |
| Opening the Gates of Hell by Lionel Brood - 2002 - 188 pages |
| Opus by C. a. Almeida - 2010 - 396 pages |
| Orange Fingertips by Leander Jackie Grogan - 2005 - 264 pages |
| Ordinary Horror by David Searcy - 2002 - 240 pages |
| Orgoglio E Pregiudizio E Zombie by Jane Austen, Seth Grahame-Smith - 2010 - 370 pages |
| Orgoglio e pregiudizio e zombie. Finché morte non vi unisca by Steve Hockensmith - 2012 - 321 pages |
| Orgy of Souls by Wrath James White, Maurice Broaddus - 2008 - 138 pages |
| Orlin Wood by Jeremy K. Tyler - 2012 |
| Ormond, Or, The Secret Witness by Charles Brockden Brown, Philip Barnard, Stephen Shapiro - 2009 - 414 pages |
| Orpheus Process by Daniel H. Gower - 1992 - 432 pages |
| Orpheus Rising by Bateman - 2010 - 480 pages |
| Oscar Wilde's The Picture of Dorian Gray---Illustrated Collector's Edition by Janel Bragg - 2005 - 104 pages |
| Oscuro by Teo Rodríguez - 2012 |
| Other Lives by Alex Keaton - 2006 - 224 pages |
| Other Sex by Don Locicero - 2002 |
| Others by James Herbert - 2011 - 512 pages |
| Others by James Herbert - 2000 - 480 pages |
| Others by James Herbert - 2000 - 502 pages |
| Out "A" Order by Evie Rhodes - 2007 - 222 pages |
| Out of the Light by Holly H. Newstein, Ralph W. Bieber, II, Ralph W. Bieber Newstein, II - 2000 - 308 pages |
| Out of the Night by Patrick Whalen - 1990 - 320 pages |
| Out of the Shadows by Thomas Trabosci - 2010 |
| Out of the shadows by Georgina Doyle, Friends of the Arthur Conan Doyle Collection at the Toronto Reference Library, Arthur Conan Doyle Society - 2004 - 381 pages |
| Out of the Sight of Man by Kristoff N. Chester, calibre (0.7.50) [http://calibre-ebook.com] - 2011 - 108 pages |
| Out there by Perry Brass - 1994 - 184 pages |
| Out There, in There by S. Hessel - 2005 - 360 pages |
| Outer Darkness by Bart Brevik - 2007 - 404 pages |
| Outer Darkness by Bart Brevik - 2007 - 404 pages |
| Outlaw Children A World Re-Created by Marilyn Thompson - 2008 - 324 pages |
| Outpost by Adam Baker - 2011 - 384 pages |
| Outrageously Offensive Jokes by Maude Thickett - 1986 - 123 pages |
| Outrageously offensive jokes IV by Maude Thickett - 1987 - 125 pages |
| Outrageously Pogo by Walt Kelly, Selby Kelly, Bill Crouch - 1985 - 223 pages |
| Over The Top by Judy Shoenthal - 2005 |
| Overwinter by David Wellington - 2010 - 352 pages |
| Overwinter by David Wellington - 2010 - 288 pages |
| Overwinter by David Wellington - 2010 - 288 pages |
| Owens Valley by Desilva - 2005 - 496 pages |