The Secret of the Invisible City
| First published | 1984 |
|---|---|
| Series | Jenny Dean #4 |
| Publisher | Grosset & Dunlap |
| Format | Hardcover |
| Type | Novel |
| Cover art | Gino D'Achille |
| Pages | 135 |
| Price | $2.95 |
| ISBN | 0448190044 |
Cover artist on title page of Archive.org copy; price on back cover.