1998 - Icefalcon's Quest [Darwath, Bk 5] (Paperback) → Hardcover ISBN-13: 9780345388247 ISBN-10: 0345388240 Genre: Science Fiction & Fantasy 17 1985 - The Ringworld Engineers [Ringworld, Bk 2] (Paperback) → Paperback, Hardcover ISBN-13: 9780345334305 ISBN-10: 0345334302 Genre: Science Fiction & Fantasy 85 |