++ - A Spell for Chameleon Del Rey 1977
++ - The Source of Magic Del Rey 1979
++ - Castle Roogna Del Rey 1979
++ - Centaur Aisle Del Rey 1982
++ - Ogre, Ogre Del Rey 1982
++ - Night Mare Del Rey 1983
++ - Dragon on a Pedestal Del Rey 1983
++ - Crewel Lye Del Rey 1985
++ - Golem in the Gears Del Rey 1986
++ - Vale of the Vole Avon 1987
++ - Heaven Cent Avon 1988
++ - Man from Mundania Avon 1989
+- - Question Quest Avon 1991
-- - Isle of View Morrow Avon 1990
-- - The Color of Her Panties Avon 1992
+- - Demons Don't Dream Tor 1993
-- - Harpy Thyme Tor 1994
+- - Geis of the Gargoyle Tor 1995
-- - Roc and a Hard Place Tor 1995
-- - Yon Ill Wind Tor 1996
-- - Faun & Games Tor 1997
-- - Zombie Lover Tor 1998
-- - Xone of Contention Tor 1999
-- - The Dastard Tor 2000
-- - Swell Foop Tor 2001?
-- - Up in a Heaval Tor 2002?

++ - Guide to Xanth