Gilman, Carolyn Ives
Chronological Checklist

Series – Twenty Planets

4 titles
• Halfway Human (New York: Avon Books, 1998)
• Arkfall (Rockville, Maryland: Phoenix Pick, 2010)
• The Ice Owl (Rockville, Maryland: Phoenix Pick, 2012)
• Dark Orbit (New York: Tor, 2015)