1990 - The Age of Chaos [Unbalanced Earth, Bk 3] (Paperback) ISBN-13: 9780553284546 ISBN-10: 0553284541 Genre: Science Fiction & Fantasy ? 1989 - Dreams of Stone [Unbalanced Earth, Bk 1] (Paperback) → Paperback ISBN-13: 9780553279740 ISBN-10: 0553279742 Genre: Science Fiction & Fantasy 3 1988 - The Centre of the Circle [Servants of the Ark Trilogy, Bk 2] (Paperback) ISBN-13: 9780553270563 ISBN-10: 0553270567 Genre: Science Fiction & Fantasy 3 |