- Water Witch (1982) (with Cynthia Felice)
- Lincoln's Dreams (1987) (John W. Campbell Memorial Award winner)
- Light Raid (1989) (with Cynthia Felice)
- Doomsday Book (1992) (Hugo and Nebula Award winner)
- Remake (1994)
- Bellwether (1996)
- Promised Land (1997) (with Cynthia Felice)
- To Say Nothing of the Dog (1998) (Hugo Award)
- Passage (2001)
She has also written numerous short stories and other works.
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