- On a little street in Singapore
- On a Long Forgotten Road: anno nil - year zero
- On A Pale Horse
- On a Pale Horse
- On a Witch's Mind
- On an Odd Note
- On Angel's Wings
- On Angelic Wings
- On Armored Wings
- On Astronaut Wings
- On Becoming Master of Time and Space
- On Black Mesa
- On Blackened Wings
- On Bullies & Gods
- On Celestra’s Wings
- On Cloud Nine
- On Common Ground
- On Crusade
- On Demon Wings
- On Dragons Wings: A Trio of Tales from the Land of Druimoor
- On Dragons' Wings
- On Dragonwings
- On Dreaded Wings: An Urban Fae Charity Anthology
- On Duty
- On Eagles Wings
- On Earth, As It Is: A Kingdom Fantasy Novel
- On Gryphon's Wings
- On Guard (The Eternal Dungeon, Volume 4)
- On Hallow's Eve
- On Heroes
- On Heroes: A Foible
- On His Birthday, Reginald Got
- On Holiday with an S.O.B.
- On Hostile Ground
- On Loan: A Reading Under Wraps Short Story
- On Love's Edge
- On Midnight Wings
- On Moonlit Wings
- On My Father's Bike
- On My Terms
- On My Way
- On Nothing & Kindred Subjects
- On Princesses: A Foible
- On Rabbits, Holes, and Shivs
- On Robots and Leprechauns
- On Safari in R'lyeh and Carcosa with Gun and Camera
- On Safari in R'lyeh and Carcosa with Gun and Camera
- On Sleeping Beauties: A Foible
- On Something
- On The 7th Day
- On the Accidental Wings of Dragons
- On The Anvil Of War
- On The Backs Of Dragons
- On the Banks of the River of Heaven
- On the Beach
- On the Bloodstained Shore of Dreams
- On the Borderland
- On the Cards Book Four
- On the Cards Book One
- On the Cards Book Three
- On the Cards Book Two
- On the Cards: The Complete Series
- On the Edge
- On The Edge
- On the Edge
- On the Edge
- On the Edge of Death
- On the Edge of Destiny
- On the Edge of Dream
- On the Edge of Eternity
- On the Edge of Faerie: A Modern Fairy Tale Novella
- On the Edge of Forever: Four Classic Fantasy Short Stories
- On the Edge of Humanity
- On the Eyeball Floor
- On the Face of the Waters: A Tale of the Mutiny
- On the Hazards of Wishing
- On the High Road
- On The Hunt
- On the Hunt
- On the Island of the Grotesque
- On the Makaloa Mat, Island Tales
- On The Mark
- On the Oceans of Eternity
- On the Other Side of Winter
- On the Other Side. The Fall
- On the Parapet
- On the Path of Outcasts
- On the Plains with Custer: The Western Life and Deeds of the Chief with the Yellow Hair, under whom ...
- On the Plantation: A Story of a Georgia Boy's Adventures during the War
- On the Prowl
- On the Prowl
- On the Rez and Other Stories
- On the Rise
- On The Road (To Nirvana)
- On the Road with a Circus
- On the Rugged Hills
- On The Run
- On the Seventh Day
- On the Street Where Death Lives
- On the String
- On the Third Night
- On the Topic of Geography
- On the Trail of Dragons
- On the Way Through the Woods
- On the Wings of a Crow
- On the Wings of Dreams
- On the Wings of Hope: Prose
- On to the Otherworld
- On Trial for Freedom
- On Unfaithful Wings
- On Wings And Ash
- On Wings of Bone and Glass
- On Wings of Bronze
- On Wings of Chaos
- On Wings of Magic
- Once
- Once & Future
- Once a Greech
- Once a Predator
- Once a Rake, Always a Rogue
- Once a Thief
- Once a Thief, Always a Thief
- Once a Thief...
- Once A Wizard...
- Once Again
- Once Again: Tales of Destiny
- Once An Alpha (The S Files)
- Once an Angel
- Once and Forever
- Once and Future Hearts Box One
- Once And Future Hearts Box Two
- Once Awakened
- Once Bitten
- Once Bitten Twice Smitten
- Once Bitten, Twice Shy
- Once Bitten...