Kathryn Sullivan writes young adult science fiction and fantasy, including the fantasy novel The Crystal Throne and the short story collection Agents, Adepts & Apprentices. Her Doctor Who-related works include the essay, “The Fanzine Factor,” in the Hugo-winning Chicks Dig Time Lords and essays in Children of Time: Companions of Doctor Who and Outside In: 160 New Perspectives on 160 Doctor Who Stories by 160 Writers. She also has reviews in the Star Trek-related Outside In Boldly Goes and Outside In Makes It So. She is owned by a large cockatoo, who graciously allows her to write about other animals, as well as birdlike aliens. Kathryn lives in Winona, MN, where the river bluffs along the Mississippi River double as cliffs on alien planets or the deep mysterious forests in a magical world.