Mercedes "Misty" Lackey (born June 24, 1950) is a prolific American author of fantasy novels. Many of her novels and trilogies are interlinked and set in the world of Velgarth, mostly in and around the country of Valdemar. Her Valdemar novels form a complex tapestry of interaction between human and non-human protagonists with many different cultures and social mores.
The other main world in which she writes is one much like our own, but also populated by elves, mages, vampires, and other mythical beings. Some of the interlocking series in this world are the Diana Tregarde thrillers, the SERRAted Edge books about racecar-driving elves, and the Bedlam's Bard books, describing a young man with the power to work incredible magics through music. While the SERRAted Edge and Bedlam's Bard series are still in progress, she has declined to write further Diana Tregarde stories because of low sales.
Lackey received harassment from a small but determined number of fans over the decision. She claims that the trouble escalated to the point where she and her husband received death threats and were temporarily forced to suspend their fandom activities. She resumed attending conventions by 2004.
There is a Mercedes Lackey fan group on Usenet. The fanclub, the "Queen's Own", is named after Herald Talia's position in her books. Her earlier Velgarth novels are all solo projects, but later volumes in the Valdemar saga are illustrated by her husband Larry Dixon, and in many of her latest works he is also credited as co-author.
Many of her other novels are collaborations. She has worked with fantasy authors Andre Norton, Marion Zimmer Bradley, and Piers Anthony, and most recently has written The Obsidian Trilogy with historian James Mallory and a historical fantasy series based on Elizabeth I with romance writer Roberta Gellis.