John Helfers

Aftershock

Year unknown Jean Rabe, Jean Raabe, and John Helfers

Alien abductions

Year unknown Martin H. Greenberg and John Helfers

Alpha Bravo Delta guide to the U.S. Navy

Year unknown

Army of the fantastic

Army of the fantastic

Year unknown John Marco and John Helfers

BattleTech : Legacy

Year unknown

Black cats and broken mirrors

Year unknown Martin H. Greenberg and John Helfers

Champions of Aetaltis

Year unknown Marc Tassin, John Helfers, Erin M. Evans, Ed Greenwood, Larry Correia, Elizabeth A. Vaughan, Steven S. Long, Jean Rabe, Lucy A. Snyder, Aaron Rosenberg, Melanie Meadors, Richard Lee Byers, Cat Rambo, Dave Gross, David Farland, Elaine Cunningham, and Mel Odom

Champions of Aetaltis

Year unknown Marc Tassin, John Helfers, Erin M. Evans, Ed Greenwood, Larry Correia, Elizabeth A. Vaughan, Steven S. Long, David Farland, Elaine Cunngingham, and Cat Rambo

Chicks and Balances (Chicks in Chainmail)

Year unknown Esther M. Friesner and John Helfers

Cloak and Dagger

Cloak and Dagger

Year unknown John Helfers, Russell Davis, Tom Clancy, and Steve R. Pieczenik

Familiars

Year unknown Kristine Kathryn Rusch, Jody Lynn Nye, Laura Resnick, P. N. Elrod, Von Jocks, Jean Rabe, Andre Norton, Bill McCay, Laura Anne Gilman, Diane A. S. Stuckart, Gary A. Braunbeck, Susan Sizemore, Josepha Sherman, John Helfers, and Michelle Sagara West

Fiction River: Risk Takers (Fiction River: An Original Anthology Magazine) (Volume 12)

Year unknown Fiction River, Dan C. Duval, Chrissy Wissler, Anthea Sharp, T. D. Edge, Cindie Geddes, Annie Reed, John Helfers, Kerrie Hughes, Robert T. Jeschonek, Russ Crossley, Christy Fifield, Phaedra Weldon, Brigid Collins, Dean Wesley Smith, Kristine Kathryn Rusch, and Lee Allred

Future Americas

Future Americas

Year unknown

Future Americas

Year unknown

Future crimes

Year unknown Martin H. Greenberg and John Helfers

Ghouls, Ghosts, and Ninja Rats

Ghouls, Ghosts, and Ninja Rats

Year unknown Martin H. Greenberg, John Helfers, and Martin H. Greenberg

Ghouls, Ghosts, and Ninja Rats: Paranormal Crime Stories That Just Might Kill You

Year unknown Martin H. Greenberg and John Helfers

In the shadow of evil

Year unknown Martin H. Greenberg and John Helfers

Johann David Wyss' Swiss family R...

Johann David Wyss' Swiss family Robinson

Year unknown

Knight fantastic

Year unknown Martin H. Greenberg and John Helfers

Leviathans

Year unknown William H. Keith, Harry Turtledove, S. M. Stirling, MIchael J. Ciaravella, Bryn BIlls, Steven Mohan Jr., Tyler Whitley, Blaine Lee Pardoe, and John Helfers

Man Vs Machine

Year unknown Martin H. Greenberg and John Helfers

Murder most medieval

Year unknown Martin H. Greenberg and John Helfers

Murder Most Medieval

Murder Most Medieval

Year unknown Martin Harry Greenburg and John Helfers

Mystery!

Year unknown Chantelle Aimée Osman, Lucy A. Snyder, Michael A. Stackpole, Gregory A. Wilson, Bryan Young, Timothy Zahn, Donald J. Bingle, Dylan Birtolo, Ronald T. Garner, and John Helfers

Old School

Old School

Year unknown John Helfers, Olivier Gagnon, and Patrick Goodman

Once upon a galaxy

Year unknown Wil McCarthy, Martin H. Greenberg, and John Helfers

Shadowrun

Shadowrun

Year unknown John Helfers, Matt Forbeck, Kevin Killiany, and Ilsa J. Bick

Siege of night and fire

Year unknown

Slipstreams

Year unknown Martin H. Greenberg and John Helfers

Space stations

Year unknown Martin H. Greenberg and John Helfers

Sprawl Stories

Year unknown John Helfers, Russell Zimmerman, Jennifer Brozek, R. L. King, and Dylan Birtolo

Stalking the Wild Hare

Year unknown Jean Rabe, Mike Stackpole, Marc Tassin, John Helfers, Chris Pierson, Stephen D. Sullivan, Tim Waggoner, Elizabeth A. Vaughan, Kerrie Hughes, and Linda P. Baker

The best paranormal crime stories ever told

Year unknown Martin H. Greenberg and John Helfers

The Complete Frame Job

The Complete Frame Job

Year unknown John Helfers, Dylan Birtolo, Brooke Chang, Bryan CP Steele, C.Z. Wright, Jason Schmetzer, and Jason M. Hardy

The End of the World -- stories of the apocalypse

Year unknown Martin H. Greenberg, Neil Gaiman, Orson Scott Card, George R. R. Martin, Robert Silverberg, Rick Hautala, Lucius Shepard, Norman Spinrad, Lester del Rey, William F. Nolan, Roger Zelazny, Gregory Benford, Michael Swanwick, John Wyndham, Andrea Edwards, Nancy Kress, Robert Sheckley, Arthur C. Clarke, John Helfers, Poul Anderson, Martin H. Greenberg, and Robert Silverberg

The Forgotten

Year unknown R. L. King and John Helfers

The mutant files

Year unknown Martin H. Greenberg and John Helfers

The Source

The Source

Year unknown R. L. King and John Helfers

The Swiss family Robinson

The Swiss family Robinson

Year unknown

The Threshold

The Threshold

Year unknown R. L. King and John Helfers

The Twilight Zone: Book 3

Year unknown

The unauthorized Dan Brown companion

The unauthorized Dan Brown companion

Year unknown

The Unauthorized Dan Brown Companion

Year unknown

The Valdemar companion

Year unknown John Helfers and Denise Little

The Valdemar companion

The Valdemar companion

Year unknown John Helfers and Denise Little

The Vorkosigan companion

Year unknown Lillian Stewart Carl and John Helfers

The Zenith Lord

Year unknown Dameon Cox, John Helfers, Kastle Olson, Kastle Olson, Dameon Cox, Kastle Olson, Dameon Cox, and Dameon Cox

Towering Yarns

Year unknown Christian W Smith, Arthur C. Clarke, Charles Sheffield, Mike Resnick, Paul Crilley, John Helfers, Janny Wurtz, Teresa Patterson, Jody Lynn Nye, and William H Keith

Unauthorized Dan Brown Companion

Unauthorized Dan Brown Companion

Year unknown

Vampires in Love

Year unknown Rosalind M. Greenberg, Martin H. Greenberg, Neil Gaiman, Anne Rice, Garry Kilworth, L. A. Banks, Bradley Sinor, Susan Sizemore, John Helfers, Nancy Holder, Kelley Armstrong, Norman Partridge, Edward Gorman, C. T. Adams, Cathy Clamp, Charles de Lint, Dean Wesley Smith, Lilith Saintcrow, Charles L. Grant, Russell Davis, Rachel Caine, Kristine Katherine Rusch, Elaine Viets, Tanya Huff, and Larissa Ione

Villains Victorious

Year unknown John Helfers and Martin H. Greenberg

Warrior fantastic

Year unknown Martin H. Greenberg and John Helfers