Kathryn Anne Ptacek was born on 12 September 1952 in Omaha, Nebraska, USA, but was raised in Albuquerque, New Mexico. She received her B. A. in Journalism, with a minor in history, from the University of New Mexico, Albuquerque, where she was graduated with distinction in 1974. While attending the university, she was a student of award-winning mystery writer Tony Hillerman and well-known YA writer Lois Duncan. Afterward, she worked briefly for a political party best left unnamed, was a telephone solicitor for the New Mexico Assn. of Retarded People, and spent two years as an advertising lay-out artist for a regional grocery warehouse co-op, and then worked for the University of New Mexico first as a secretary in the Dept. of Speech and Hearing, then for the University's Computing Center as their only technical writer and editor. After the sale of her first novel, an historical romance, in July 1979, she quit to become a full-time novelist. As Les Simons, Kathryn Atwood, Anne Mayfield, Kathleen Maxwell, Kathryn Ptacek, and Kathryn Grant, she has written an historical fantasy series, numerous historical romances, and five horror novels. Her dark fantasy have won the Silver Medal and Gold Medal awards given by the West Coast Review of Books. She has also edited three anthologies, the critically acclaimed Women of Darkness and its companion Women of Darkness II (both Tor), and Women of the West (Doubleday). Editions of her books have appeared in England, Japan, Norway, Sweden and Germany. Her short stories have appeared in Greystone Bay, Doom City (Greystone Bay II), Fantasy Tales, the Post Mortem anthology, Pulphouse 5, The Horror Show, Freak Show (HWA anthology), A Confederacy of Horrors, Into The Fog, The Ultimate Witch, and Phobias. She is a member of Horror Writers Association, Mystery Writers of America, the International Women Writers Guild, and the Police Writers Club. She also prepares a market report for Hellnotes, is the editor of the Horror Writers Association's monthly newsletter, and publishes a market newsletter, The Gila Queen's Guide to Markets, which goes to writers and artists around the world. On 1982, she married to dark fantasy novelist Charles L. Grant, who died in 2006. She shares a 116-year-old Victorian clapboard house with five cats in Newton, New Jersey. Her hobbies include gardening, jewelry making, and various needlework. She also has a large collection of gila monster memorabilia, and collects unusual teapots and cat whiskers.

Dark love
1995
ISBN 9780451454720
The Mammoth Book of Vampire Stories by Women
2001
ISBN 9780786709182
Noir Comme L'Amour
1995
ISBN 9782226095695
The First Chronicles of Greystone Bay
1985
ISBN 9780812518528
Dark Bits
2013

Murder for Mother
1994
ISBN 9780451180360
Expiration Date
2015
ISBN 9781770530638
Demons & Dreams: The Best Fantasy and Horror 1
1988
ISBN 9780712634205
Seeds of Fear
1995
ISBN 9780786016471
The Third Cat Story Megapack: 25 Frisky Feline Tales, Old and New
2013
ISBN 9781479401598
Witches' brew
2002
ISBN 9780425186091
Seeds of Fear
2011
ISBN 9781936535149
The Year's Best Fantasy: First Annual Collection
1988
ISBN 9780312018528
The Ultimate Witch
1993
ISBN 9780440505310
Crafty Cat Crimes
2000
ISBN 9780760715826
The Mammoth Book of Best New Horror, #12
2001
ISBN 9780786709199
The Five Senses of Horror
2018
ISBN 9780998827506
Deathport
1993

Blood Autumn
1985
ISBN 9780812524475
Graven Images
2000
ISBN 9780441007660
Expiration Date
2015
ISBN 9781770530621
Fright Into Flight
ISBN 9781939905444
The Beauty of Death
2016

Shadoweyes
1984
ISBN 9780812518580