Houghton Mifflin · Popular Library
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Havoc in Islandia | 978-0-395-31833-1 (0-395-31833-5) | 1982 |
| The Islar: A Narrative of Lang III | 978-0-445-04171-4 (0-445-04171-4) | 1978 |
| The Two Kingdoms: A Novel of Islandia | 978-0-395-28152-9 (0-395-28152-0) | 1979 |