 Moon of Three Rings
| 1966 |
 Urban allies Urban allies
| |
 Uncharted Stars
| 1969 |
 The Patchwork Girl
| 1980 |
 The forerunner factor The forerunner factor
| |
 On Her Majesty's Behalf : The Great Undead War
| |
 Silver May Tarnish (Witch World Chronicles)
| |
 Forerunner
| |
 Steel Magic
| |
 By the blood of heroes By the blood of heroes
| |
 Last Days
| 2012 |
 The bride of Willow Creek
| |
 Frogkisser!
| 2017 |
 Web of the Witch World
| 1964 |
 Sorceress of the Witch World
| 1968 |
 Redline The Stars
| 1993 |
 Victory on Janus
| 1966 |
 Songsmith
| 1992 |
 The Wives of Bowie Stone
| |
 Foxfire Bride
| 2004 |
Plague Ship Plague Ship
| |
 The integral trees
| 1984 |
 Black Trillium
| |
 The Icarus Girl
| 2005 |
 The Fall
| 2000 |
 Elvenblood (Half-Blood Chronicles)
| |
 What Is Not Yours Is Not Yours
| 2016 |
 Red Hart Magic
| 1976 |
 Warlock of the Witch World
| 1967 |
 Gryphon's Eyrie
| 1984 |
 Sharps
| 2012 |
 The Best Man
| 1998 |
 The Magestone
| 1996 |
 Switchback
| 2017 |
 Divisadero
| 2007 |
 Lavender-Green Magic
| 1974 |
 The Warding of Witch World
| 1997 |
 The Opposite House
| |
 The Cat's Table
| 2011 |
 Leopard in Exile: Carolus Rex: Book II
| 2001 |
 World of Trouble
| 2014 |
 The Hammer
| |
 Above the Veil
| 2001 |
 Beast Master's Circus
| |
 Storms of Victory Storms of Victory: Witch World
| |
 Mr Pye
| 1953 |
 Sargasso of Space
| 1955 |
 Scent of Magic
| 1998 |
 The Last Witness
| 2015 |
 Countdown City
| 2013 |
 A Confusion of Princes
| 2012 |
 Lord of Thunder
| 1962 |
 Spell of the Witch World
| |
 Flight of Vengeance (Witch World: The Turning)
| |
 The Devil You Know
| 2016 |
 Blue and Gold
| 2010 |
 The Zero Stone
| 1974 |
Catseye (Dipple, Bk. 1) Catseye (Dipple, Bk. 1)
| |
 Zarsthor's Bane
| 1978 |
 To the King a Daughter
| 2000 |
 Confessions of an Ugly Stepsister
| 1999 |
 Witch World
| 1963 |
 Protector Protector
| |
 Night of Masks
| 1964 |
 Crashlander
| |
 Sky Trillium
| |
 Shade's Children
| 1997 |
 Elvenborn (Halfblood Chronicles)
| |
 Watcher of the Dark: A Jeremiah Hunt Supernatural Thriller (The Jeremiah Hunt Chronicle)
| |
 Four from the Witch World
| 1989 |
 On Wings of Magic
| 1993 |
 The knight of the red beard
| |
 Dare to Go A-Hunting
| |
 Coming Up for Air
| 1938 |
 The World of Ptavvs
| 1966 |
 Forerunner
| 1981 |
 Eyes to See
| 2011 |
 Wind in the Stone
| 1999 |
 The Proof House
| |
 A Taste of Magic
| 2006 |
 The Belly of the Bow
| |
 The Elvenbane
| 1991 |
 Into Battle
| 2001 |
 Horn Crown
| 1981 |
 Forerunner Foray
| 1973 |
 Octagon Magic
| 1967 |
 Mr. Fox
| 2011 |
 Shadow
| |
 Brother to Shadows
| 1993 |
 Mirror of Destiny
| 1995 |
 To Sleep in a Sea of Stars
| 2020 |
 Inferno
| 1975 |
 Burmese Days
| 1934 |
Judgment Day Judgment Day
| 2014 |
 Beast Master's Ark
| 2002 |
 Star Soldiers
| |
 Warlock
| |
 Golden Trillium
| 1993 |
 The Beast Master
| 1959 |
 Janus
| 2002 |